Answers
Answer:
need a photo
Explanation:
put a photo
Related Questions
Which of the following are compounds?
O H20 and O2, but not CH4
O O2 and CH4, but not H2O
O H20 and CH4, but not O2
O H20, O2, and CH4
Answers
Answer:
O H20 and CH4, but not O2
Explanation:
Compounds consist of multiple elements. O2 is just two oxygen atoms, meaning two atoms from the same element.
4. How of Earth's upper layers flows very
slowly?
A)asthenosphere
B) continental crust
C)lithosphere
D)ocean crust
Answers
The asthenosphere is the Earth's upper layer which flows very slowly.
What is the asthenosphere ?The Earth's upper mantle contains the ductile and mechanically feeble asthenosphere. It stretches as far as 700 km beneath the lithosphere, between 80 and 200 km below the surface. The asthenosphere's lower border, however, is not clearly defined.
What are the upper layers of Earth?Lithosphere is the Earth's thin, brittle crust and upper mantle make up its uppermost layer. The lithosphere is divided into slowly moving tectonic plates and is generally stiff.
Although the asthenosphere is nearly solid, its mechanical weakness is caused by a little amount of melting (less than 0.1% of the rock). The most significant source of magma on Earth is when the asthenosphere wells upwards because there is more extensive decompression melting there.
Hence, The asthenosphere is the Earth's upper layer which flows very slowly.
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list 3 pieces of background information relevant to the biological effects of high fructose corn syrup (hfcs).
Answers
High fructose corn syrup (HFCS) is a sweetener that is derived from corn and is commonly used in processed foods and drinks. HFCS is a mixture of glucose and fructose and is generally cheaper and sweeter than sugar.
Metabolism: Unlike glucose, which is metabolized by all cells in the body, fructose is metabolized primarily in the liver. This means that large amounts of fructose can put a significant load on the liver, leading to fat storage and other negative metabolic effects.
Fructose vs. Glucose: Unlike glucose, which is the main source of energy for the body, fructose has limited metabolic uses. This means that the body is more likely to store excess fructose as fat, which can contribute to weight gain and obesity.
Studies have shown that fructose is less effective at stimulating insulin secretion and suppressing hunger, compared to glucose. These differences in metabolism and insulin regulation can have important implications for the health effects of HFCS.
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which two statements correctly relate RNA amino acids , and proteins
Answers
The two correct statements that relate RNA, amino acids, and proteins are C and D.
RNA, Amino acids, and ProteinsRNA is used to build the amino acid sequence: RNA molecules, specifically messenger RNA (mRNA), serve as templates for protein synthesis. During a process called translation, the sequence of nucleotides in mRNA is read by ribosomes, and the corresponding amino acids are assembled in a specific order to form a protein.
Long amino acid sequences fold in a specific way to form proteins: Proteins are composed of long chains of amino acids. After the amino acids are synthesized and linked together, the resulting chain folds into a three-dimensional structure, which is critical for the protein's function. This folding process is driven by various interactions between the amino acid residues in the chain, allowing the protein to adopt its specific shape and perform its specific function.
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What is the value of a transitional fossil?
Transitional forms show the evolutionary steps between species.
Transitional forms are analogous fossils.
Transitional forms discredit the theory of evolution.
Transitional forms are proof of punctuated equilibrium in evolution.
Answers
The value of a transitional fossil is that its forms are analogous fossils.
What is Transitional fossil?These are fossilized remains of organisms which exhibits traits common to
both an ancestral group and its derived descendant group.
Analogous fossils possess similar structures and functions but evolved
differently thereby making the transitional form the same as it being
analogous.
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Answer:
A
Explanation:
On Edge2022 :)
you buy 100 shares of xyz, which has a bid price of $50.1 and an ask price of $50.45. you sell all shares after 6 months later when the bid price is $50.2 and ask price is $50.6. there is a 0.3% brokerage commission, and the borrowing and lending interest rates are 6%, compounded 4 times a year. xyz pays a single dividend of 1 at the end of 3 months.
Answers
The 3-month profit for this investment scenario is a loss of $21.32.
The 3-month profit for this scenario can be calculated as follows:
First, we need to calculate the purchase price, which is the average between the bid price and the ask price. This is $50.27 per share.
Next, we multiply the purchase price by the number of shares to find the total cost of the investment, which is $5027.
Then, we need to subtract the brokerage commission of 0.3%, which is $8.32.
The total cost of the investment after the commission is $5018.68.
After 3 months, we need to add the interest earned on the investment and subtract the dividend of 1 per share.
Finally, we calculate the sale price of the shares, which is the average between the bid price and the ask price, which is $50.4 per share.
The total sales price is $5040.
The 3-month profit is the difference between the sale price and the total cost of the investment, which is $-21.32.
In conclusion, the 3-month profit for this investment scenario is a loss of $21.32.
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ATP is most likely being used for
1.
substance A to enter the cell
2
.
substance B to enter the cell
3.
both substances to enter the cell
4.
neither substance to enter the cell
Answers
Answer:
According to the diagram, ATP is most likely being used for substance A to enter the cell.
Explanation:
ATP is necessary for the transport of substances against their concentration gradient, participating in the active transmembrane transport.
In the diagram (see picture) substance A has a higher intracellular concentration, and a lower one in the extracellular space. For this substance to enter the cell it is necessary to use an active transport that requires ATP, in order to pass against its gradient.
With respect to the other options:
Substance B probably does not require ATP because it can enter by diffusion following its concentration gradient. Both substances enter the cell, but only A requires the use of ATP in its transport.
Answer:
substance A to enter the cell
Explanation:
Question 5 of 25
Engineers must design a process for producing a large amount of ammonia in a reasonable amount of time. Which criterion would the process need to meet
O A. The rate of product formation must be high.
B. The process must use a known technology.
C. The reactants must come from natural sources.
D. The rate of formation of the reactants must be high.
SUBMIT
Answers
An engineer while developing a procedure for producing a large amount of ammonia in a reasonable quantity of time must meet the standard that the process must utilize a known technology.
What is ammonia?Ammonia exists as a colorless, pungent gas comprised of nitrogen and hydrogen. It exists as the easiest stable compound of these components and serves as a starting material for the production of numerous commercially important nitrogen combinations. The major usage of ammonia exists as a fertilizer. In the United States, it exists usually applied directly to the soil from tanks including liquefied gas.
Therefore, the (B) option exists as the correct answer.
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Please help !!!!!!!!!!!
Answers
Answer:
1) Weathering, Erosion, Disposition
2) Physical weathering is the breakdown of large rocks into fragments by physical forces; the chemical composition of the rock is not changed. Chemical weathering is the breakdown of rock by chemical reactions; the chemical composition is changed.
3) The four forces of erosion are water, wind, gravity, and glaciers.
4) Because the velocity of the river slows down a great deal when it reaches the large body of water, the sediment that the river was carrying is deposited along the mouth of the large body of water.
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Abrasion: Abrasion is the breaking down and wearing away of rock material by the mechanical action of another rock. Three agents of physical weathering that cause abrasion are moving water, wind, and gravity. Also, rocks suspended in thence of a glacier can cause abrasion of other rocks on Earth's surface. This would be a prime example of physical weathering, or mechanical weathering.
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Acid Precipitation: Acid rain causes less erosion than normal rainwater does. Rainwater can break down rocks by dissolving minerals in the rocks. Acid rain is rainwater that is more acidic than normal rainwater. Acid rain can also dissolve the minerals in rocks faster than normal rainwater can. This is chemical weathering.
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Animal actions: Animal and plant mobility is a factor in biological weathering. For instance, a plant may grow in a gap in a rock and, as its roots spread, cause the fracture to expand. A rabbit may also burrow into a crack in a rock, making it wider and eventually separating the rock. This is an example of physical weathering.
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Ice wedging: Ice wedging ,sometimes known as frost wedging ,can also cause rocks to break apart. Ice wedging causes cracks in rocks to expand as water seeps in and the water freezes and expands opening the crack further. Rocks formed under pressure deep within earth can become exposed at the surface. This is physical weathering
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Oxidation: Oxidation is another kind of chemical weathering. It occurs when oxygen from air dissolves in water and combines with chemicals in the rocks to form oxides. if the rock contains a lot of iron, then oxidation produces a brown material called iron oxide. This looks like rust on the rock.
What is the difference between weathering erosion and deposition?Weathering is the chemical and mechanical breakdown of exposed rock. The chemical changes alter the minerals and make them softer, and mechanical weathering physically breaks rock into smaller and smaller pieces.
Erosion is the REMOVAL of those chemically and mechanically softer and broken pieces of rock from their original locations, by gravity, water, ice or wind. Erosion is transport (and as a result, fresh unaltered rock is exposed to wind, water and weather, and THAT becomes weathered in turn). The material being transported is ‘sediment’: sand, silt, mud and gravel.
Deposition is when the weathered and eroded (transported) material is dropped and settles down elsewhere, forming a ‘deposit’ of transported rock material.
If this deposit remains undisturbed long enough, and is buried by enough arriving material, it will eventually go through compaction and chemical reactions forming cement between the grains - thus resulting in a brand new, sedimentary rock.
Weathering, erosion, transport, deposition, compaction and cementation are part of the ‘rock cycle’.
How can the complete rock cycle be described?Let’s start with basalt that form at mid ocean spreading centers. At mid ocean spreading centers rock material from the earth’s mantle continuously melts due to continuous decreasing in pressure from the oceanic crust spreading at this point. The molten rock quickly cools at the earth’s surface and forms rock known as basalt that makes up the oceanic crust all over the world. The newly produced oceanic crust rock slowly moves towards a boundary with a continental crust where the oceanic crust subducts beneath the continental crust due to the oceanic crust having a higher density than the continental crust. This is where things get a bit more interesting.
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Why might using other sources of power, like wind and solar energy, help to slow global warming? A. All types of energy cause global warming to increase. B. Wind and solar energy require heat from the sun, which would lower global temperatures. C. Wind and solar energy do not require the use of fossil fuels. D. Wind and solar energy use carbon dioxide, which would help remove it from the atmosphere.
Answers
Answer:
c
Explanation:
fossil fuels release greenhouse gasses into the atmosphere, not using them would end a lot of that pollution, thus lowering global warming
The woods in the poem would be best described as:
Answers
Answer:
trees is best described as woods or forests also
What is it called when a species not native to an area species that invade the ecosystem and outcompete the native species causing the native species to decline potentially to extinction?
Answers
The phenomenon where a non-native species invades an ecosystem and outcompetes the native species causing the native species to decline potentially to extinction is called "invasive species.
It occurs when non-native species, also known as invasive species, establish themselves and thrive in an ecosystem, causing harm to the native species. Invasive species possess traits that give them a competitive advantage over the native species, such as rapid reproduction, efficient resource utilization, and resistance to local predators or diseases.
The consequences of biological invasions can be severe. The invasive species can outcompete native species for resources like food, habitat, and water, leading to a decline in native populations.
They may also directly predate upon or introduce diseases to native species, further exacerbating their decline. In some cases, the native species are pushed to the brink of extinction or even driven to extinction.
Biological invasions are a significant global concern due to their ecological, economic, and social impacts. They can disrupt ecosystem functioning, alter natural habitats, reduce biodiversity, and cause economic losses in industries like agriculture, forestry, and fisheries.
Efforts are made to prevent and control invasive species through monitoring, early detection, and management strategies such as eradication, containment, and control programs to mitigate their negative effects and protect native species and ecosystems.
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An amino acid's unique characteristics is defined by the ________.
Answers
Look at the microscope image of cheek cells below. Identify which letter represents the area where DNA is stored.
Answers
Answer:
nucleus
tissues
proteins
'X' represents the nucleus of the cheek cells which is the area where DNA is stored.
What is DNA ?DNA is a hereditary material which is present in human beings as well as all other living organisms. Every cell which is present in an organism's body has DNA which is the same. Most of the DNA is situated in the cell's nucleus and small amount of it can be found in the cell's mitochondria as well.
Information which is stored in DNA is stored as codes made up of four chemical bases namely, adenine, thymine , cytosine and guanine.Human DNA consists of 3 billion bases .The order of the bases determines information which is required for building and maintaining an organism.
DNA bases are capable of pairing up with each other. Adenine pairs with thymine and guanine pairs up with cytosine .Each base is also attached to a sugar molecule and a phosphate group. A base, phosphate sugar are together called as nucleotides.
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The diffusion spot diameter with one crystal at 15 min ( mm) is 59 . The rate of diffusion with one crystal So how would I convert this 59 to ( mm/h)?
Answers
Answer:
This is straight forward.If there are 60 minutes in one hour, then to convert minutes to hours as requested, simply divide the number of minutes given by 60.Thus if you divided the 59 by 60 it gives you what?round the answer to whole number.
When there is a moment of any solute present in the solution from high concentration to low concentration area is called diffusion.
It will take 0.25 hours to diffuse one crystal.
This can be calculated by:
Given,
Time for one crystal diffusion = 15 minDiameter for one crystal diffusion = 59 mmIn 1 hour there are 60 minutes.
60 minutes = 1 hour.
Then 15 minutes = ? hours
\(\dfrac{15 \; \text{minutes}}{60 \; \text{minutes}} = 0.25\)
Therefore, to diffuse one crystal of it will take 0.25 hours.
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18. Some fungi live as parasites, getting nutrients from a living host ( true or false)
Answers
Answer:
It is TRUE that some fungi live as parasites.
Explanation:
The fungi living as parasites extract nutrients from a living host and thereby infect various organisms like animals ,human beings and plants.These fungi thereby causes many diseases and can be a major problem in the agricultural arena.
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list 7 things that hormones regulate.
Answers
Answer:
heart rate
metabolism
mood
appetite
reproduction
sleep cycles
growth
Explanation:
Organ system campaign advertisement
Answers
Introducing the Organ System Campaign - advocating for the health and well-being of your body's organ systems!
Our goal is simple - to raise awareness about the importance of taking care of all your body's organ systems. Each organ system plays a vital role in keeping your body functioning properly, and neglecting any one of them can have serious consequences for your overall health.
From the circulatory system, which pumps blood and oxygen to your organs and tissues, to the respiratory system, which brings in oxygen and expels carbon dioxide, to the digestive system, which breaks down food and absorbs nutrients, every system is crucial.
Our campaign will focus on educating people about healthy habits, such as eating a balanced diet, staying hydrated, getting enough exercise, and getting regular check-ups with your doctor. We want to empower individuals to take control of their health and make choices that benefit their body's organ systems.
Join us in the fight for healthy organ systems - because a healthy body is a happy body!
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why RNA chain is always transcribed on 3' to 5' template strand ?
Answers
Explanation:
RNA growth is always in the 5′ → 3′ direction: in other words, nucleotides are always added at a 3′ growing tip, . Because of the ANTIPARALLEL nature of the nucleotide pairing, the fact that RNA is synthesized 5′ → 3′ means that the template strand must be oriented 3′ → 5′.
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Decide which image you would include in a yearbook project about Elizabeth Cady Stanton. Tell what text you would write to go with the image, and explain why you selected the image
Answers
Answer:
Decide which image you would include in a yearbook project about Elizabeth Cady Stanton. Tell what text you would write to go with the image, and explain why you selected the image
To answer that question I said that: I would pick the second picture because it shows a close up view of just her and so it wont be confusing because the other picture had two people.
I prefer the second image of Elizabeth Candy Stanton in a yearbook project. The image determines her leadership towards the women's rights movement.
Who is Elizabeth Candy Staton?
She was an American writer and activist who was a leader of the women's rights and suffrage movement in the U.S. She formulated the agenda for women's rights that guided the struggle well.
Stanton changed the social and political landscape of the United states of America by providing rights for women and slaves.
She established the National Women's Suffrage Association (NWSA) whose main goal is to secure the vote for women and supported a variety of reforms that aimed to make women equal members of society.
The word suffrage means the right to vote Women in the United states fought for suffrage since Andrew Jackson's presidency.
I preferred the second image because it depicts the dedication of Elizabeth to provide equal rights to women as men.
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Messenger RNA created through the process of transcription moves from the:
A: nucleus out to the ribosomes where translation takes place
B: ribosomes into the nucleus where
translation takes place
C: nucleus out to the lysosomes where translation takes place
D: ribosomes out to the nucleus where translation takes place
Answers
Answer: a
Explanation: transcription takes place in the nucleus. RNA leaves the nucleus to go to the ribosome where translation occurs.
I need help with what the differn't types of moon phases names
Answers
Answer:
new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, third quarter, and waning crescent!
Explanation:
new moon: we cannot see the moon in this phase
waxing crescent: the north hemisphere sees this phase as a thin crescent of light on the right side of the moon
first quarter: half of the moon is seen
waxing gibbous: this is on the way to a full moon
full moon: all light is seen now
waning gibbous: the light is slowly leaving the moon but still very illuminated
third quarter: half of the moon is bright but the opposite side of the first quarter
waning crescent: thin piece of light on the left side of the moon
I hope this helped!!!
complete the concept map to describe ionic movement during action potentials in cardiac pacemaker and contractile cells, and trace the conduction pathway.
Answers
Concept Map: 1. Electrical Stimulation: The electrical stimulation generated by the sinoatrial node (SA node) or an artificial pacemaker causes ion channels in the cardiac pacemaker cell to open, allowing for the flow of ions into and out of the cell.
What is Electrical Stimulation ?Electrical stimulation (ES) is a form of treatment that utilizes a low-level electrical current to stimulate nerve endings in order to decrease pain, increase muscle strength and improve circulation. Electrical stimulation works by delivering a low-level electrical current to the target area of the body.
2. Action Potential: The action potential is generated when positively charged ions, such as sodium and calcium, enter the cell and cause the membrane potential to become depolarised.
3. Repolarisation: Potassium ions then leave the cell and cause the membrane potential to become repolarised.
4. Conduction Pathway: The action potential then travels along the conduction pathway, which includes the atrioventricular node (AV node), bundle of His, and Purkinje fibers.
5. Contraction: When the action potential reaches the contractile cells, calcium ions enter the cells, causing the cells to contract.
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the researcher calucated a map distance of 17 map units. which of the information is correct about the testcoss porgeny
Answers
Gray-bodied, normal-winged flies plus black-bodied, vestigial-winged flies = 17% of t he total is the correct statement about the testcross progeny. Thus, the correct option is option A.
What is testcross?A test cross is a cross between an individual with an unknown genotype and another individual with a homozygous recessive genotype. A test cross identifies or reveals the original person's genotype. A test cross can help determine whether a dominant phenotype is homozygous or heterozygous for a trait.
A test cross is a genetic technique developed by Gregor Mendel that involves mating an individual with all phenotypically recessive individuals in order to determine the zygosity of the former by analysing the proportions of offspring phenotypes. There are two types of zygosity: homozygous and heterozygous. Individuals who are heterozygous have one dominant allele and one recessive allele.
Individuals who are homozygous for both dominant and recessive alleles have two dominant alleles, whereas individuals who are homozygous for both recessive alleles have two recessive alleles.
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Complete question:
In Drosophila melanogaster, vestigial wings are determined by a recessive allele of a gene that is linked to a gene with a recessive allele that determines black body color. T. H. Morgan crossed black-bodied, normal-winged females and gray-bodied, vestigial-winged males. The F1 were all gray bodied, normal winged. The F1 females were crossed to homozygous recessive males to produce testcross progeny. Morgan calculated the map distance to be 17 map units. Which of the following information is correct about the testcross progeny?
A) gray-bodied, normal-winged flies plus black-bodied, vestigial-winged flies = 17% of the total
B) black-bodied, vestigial-winged flies = 17% of the total
C) black-bodied, normal-winged flies plus gray-bodied, vestigial-winged flies = 17% of the total
D) black-bodied, normal-winged flies = 17% of the total
Please help me with this to fill in the black correct answers. This is specifically anatomy and physiology science
1. The reproductive system has both endocrine and exocrine functions. The exocrine function is stimulated by this hormone produced in the anterior pituitary______ and produces this in the female _____.
2. The endocrine function is stimulated by this hormone in the anterior pituitary_____ and produces this in the female_____
3. The reproductive system has both endocrine and exocrine functions. The exocrine function is stimulated by this hormone produced in the anterior pituitary______ and produces this in the male____
4. The endocrine functions is stimulated by this hormone in the anterior pituitary _____ and produces this in the male_____
Answers
1. The exocrine function is stimulated by this hormone produced in the anterior pituitary: follicle-stimulating hormone (FSH), and produces ova (eggs) in the female.
2. The endocrine function is stimulated by this hormone in the anterior pituitary: luteinizing hormone (LH), and produces estrogen and progesterone in the female.
3. The exocrine function is stimulated by this hormone produced in the anterior pituitary: luteinizing hormone (LH), and produces sperm in the male.
4. The endocrine function is stimulated by this hormone in the anterior pituitary: follicle-stimulating hormone (FSH), and produces testosterone in the male.
1. The exocrine function of the reproductive system in females is stimulated by the hormone produced in the anterior pituitary called follicle-stimulating hormone (FSH), which promotes the production of ovarian follicles. The exocrine product in females refers to the release of eggs or oocytes from the ovaries during ovulation.
2. The endocrine function of the reproductive system in females is stimulated by the hormone luteinizing hormone (LH) produced in the anterior pituitary. LH triggers the release of estrogen and progesterone from the ovaries, which regulate the menstrual cycle, promote the development of the uterine lining, and prepare the body for pregnancy.
3. The exocrine function of the reproductive system in males is stimulated by the hormone produced in the anterior pituitary called luteinizing hormone (LH), which stimulates the production of testosterone in the testes. Testosterone is the primary male sex hormone and is responsible for the development of male reproductive organs and secondary sexual characteristics.
4. The endocrine function of the reproductive system in males is stimulated by the hormone follicle-stimulating hormone (FSH) produced in the anterior pituitary. FSH promotes the production of sperm cells (spermatogenesis) in the testes.
Overall, the reproductive system has both endocrine and exocrine functions, with the anterior pituitary gland playing a crucial role in regulating these functions through the production of specific hormones.
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Which statement best supports the information in this diagram?
Human
Dog
This Photo by Unknown Author is licensed under CC BY
Bird
=
Whale
O the bones are similar most likely due to the organisms consuming the same food sources
O the bones are similar most likely due to the organisms probably live in the same area
O the bones are similar most likely due to the organisms evolving together
O the bones are similar most likely due to the organisms having a common ancestor
Answers
The bones are similar most likely due to the organisms consuming the same food sources is best support the information in the diagram.
What are the functions of bones?Bone provides shape and support for the body, as well as protection for some organs. Bone also serves as a storage site for minerals and provides the medium—marrow—for the development and storage of blood cells.
The bone marrow contains stem cells, which produce the body's red blood cells and platelets, and some types of white blood cells. Red blood cells carry oxygen to the body's tissues, and platelets help with blood clotting when someone has a cut or wound.
They support the body structurally, protect our vital organs, and allow us to move. Also, they provide an environment for bone marrow, where the blood cells are created, and they act as a storage area for minerals, particularly calcium.
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Directions: In the space below, draw and label the Trichoplax adhaerens using the directions in the slideshow that appears on the page where your accessed this worksheet. Your labeling should include the dorsal surface, cover cells, the ventral surface, cylinder cells, gland cells, fiber cells, and cilia.
Answers
Trichoplax adhaerens is a small, flattened, and ciliated animal belonging to Placozoa phylum. Its body is a few millimeters in size and has a simple, two-layered structure, with an outer layer of cover cells and an inner layer of cylinder cells.
Thus, the different structures of Trichoplax adhaerens include dorsal surface which is the upper surface facing upward. Then, cover cells are present which is the outermost layer of cells that cover the animal body.
Ventral surface in Trichoplax adhaerens is the lower surface of the animal facing downward. Cylinder cells are the inner layer of cells lining the digestive cavity of the animal.
Gland cells are the cells that secrete enzymes for digestion in Trichoplax adhaerens. Fiber cells help to maintain the shape of the animal and cilia are hair-like structures covering the surface of the animal.
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The Pine Tree shown below is a common gymnosperm. Name three adaptations this tree has that allow it to live on land
Answers
A waxy cuticle that covers the outer surface of the plant and prevents drying out through evaporation. The cuticle also partially protects against radiation damage from UV light.
Stomata (singular: stoma) are present in all land plant lineages except liverworts (similar to -but not the same as! – mosses). Stomata are pores or holes which allow for exchange of gasses (such as oxygen and carbon dioxide) between the plant cells and the environment. Stomata or similar structures are necessary in land plants because the waxy cuticle blocks free-flow of gasses.
Roots (or root-like structures) anchor plants to the soil and—in plants with true roots— serve as conduits for water absorption. All land plants except Bryophytes (mosses, liverworts, and hornworts) have true roots. Bryophytes have root-like structures called rhizoids that anchor them to their substrate but are not involved in water absorption (which is less important for Bryophytes because they can only survive in very moist environments).
Mutualistic association with mycorrhizal fungi, which are tightly associated with plant roots. Mychorrhizal fungi are associated with approximately 80% of all land plant species and provide additional surface area for absorption of both water and nutrients from the soil. The fungi share these resources with the plant roots, and—in exchange— the plant shares photosynthetic sugar products with the fungi.
The alternation of generations life cycle, which includes both a multicellular haploid stage and a multicellular diploid stage. Why is this an adaptation to life on land? It isn’t, in and of itself—in fact, it also occurs in *some* green algae, which are aquatic but share a common ancestor with all land plants. But specific adaptations to the alternation of generations life cycle have occurred in different lineages of plants, and those adaptations DO function as adaptations to life on land. We’ll consider these adaptations later in this reading.
These are from my text book, from last year.
Answer:
It has cuticle, a waxy, airtight seal that covers plants and allows them to retain water.
It has seeds, plant embryos without a protective cover on the scales of a cone which allows them to disperse into new locations.
It has pollen, but it is not produced in flowers, which allows it to reproduce without the need of water.
Explanation:
Lab 9: Kingdom Plantae (12 Points) Introduction Plants are defined as multicellular eukaryotes with cell walls made of cellulose. Nearly all of them contain chlorophyll and carry out photosynthesis. Being photoautotrophs, plants can make all their own organic molecules. All they need is energy from light, carbon from carbon dioxide, water, and various elements (like N, P, K, Ca, and Mg). Water can be absorbed into a plant by osmosis, but it can only travel a few cells away from a source. In order to transport water long distances, some groups of plants have specialized tissues (vascular tissue). Plants without vascular tissues must live in wet areas and cannot grow very tall. Consult the plant lecture, slides, and links on Canvas for more information on defining features of plants and groups of plants. Part 1: Comparing major groups of plants Within the plant kingdom, biologists separate plants into four major groups: bryophytes (mosses and llverworts), pteridophytes (ferns), gymnosperms (conifers), and anglosperms (flowering plants). The separations are primarily based on anatomical structures, particularly the ones they use to transport water in their bodies, and on the different ways in which plants reproduce sexually. **What to submit for this activity** Use the information from lectures, the textbook, and any other sources of your choice to fill out the table comparing the four major groups of plants. Submit your completed table as part of what you upload to the Canvas lab assignment for this week. (5 Points) What are one or more examples? Do they have vascular tissue (xylem and phloem)? Which part of the life cycle/generation is more dominant in structure? (Gametophyte or Sporophyte?) What other characteristics can help you identify this group? (List at least 2 or more) Mosses and liverworts (Bryophytes) Ferns and relatives (Pteridophytes) Conifers (Gymnosperms) Flowering plants (Angiosperms)
Answers
Mosses and liverworts (Bryophytes):
- Example: Mosses (e.g., Sphagnum moss) and liverworts (e.g., Marchantia)
- Vascular tissue: No true vascular tissue (lack xylem and phloem)
- Dominant structure: Gametophyte generation is more dominant in structure
- Other characteristics:
1. Lack of true roots, stems, and leaves; instead, they have rhizoids.
2. Reproduce via spores and require water for fertilization.
Ferns and relatives (Pteridophytes):
- Example: Ferns (e.g., Polypodium) and horsetails (e.g., Equisetum)
- Vascular tissue: Have true vascular tissue (xylem and phloem)
- Dominant structure: Sporophyte generation is more dominant in structure
- Other characteristics:
1. Reproduce via spores produced in structures called sporangia.
2. Exhibit well-developed leaves called fronds and often have underground stems (rhizomes).
Conifers (Gymnosperms):
- Example: Conifers such as pine trees (e.g., Pinus) and spruces (e.g., Picea)
- Vascular tissue: Have true vascular tissue (xylem and phloem)
- Dominant structure: Sporophyte generation is more dominant in structure
- Other characteristics:
1. Produce seeds in cones.
2. Typically have needle-like or scale-like leaves and are often evergreen.
Flowering plants (Angiosperms):
- Example: Flowering plants include roses (e.g., Rosa), sunflowers (e.g., Helianthus), and oak trees (e.g., Quercus)
- Vascular tissue: Have true vascular tissue (xylem and phloem)
- Dominant structure: Sporophyte generation is more dominant in structure
- Other characteristics:
1. Produce flowers for sexual reproduction.
2. Seeds are enclosed within fruits.
3. Have a wide range of forms, from small herbs to large trees.
Please note that the examples provided are just a few representatives of each plant group, and there are many more species within each group.Mosses and liverworts (Bryophytes):
- Example: Mosses (e.g., Sphagnum moss) and liverworts (e.g., Marchantia)
- Vascular tissue: No true vascular tissue (lack xylem and phloem)
- Dominant structure: Gametophyte generation is more dominant in structure
- Other characteristics:
1. Lack of true roots, stems, and leaves; instead, they have rhizoids.
2. Reproduce via spores and require water for fertilization.
Ferns and relatives (Pteridophytes):
- Example: Ferns (e.g., Polypodium) and horsetails (e.g., Equisetum)
- Vascular tissue: Have true vascular tissue (xylem and phloem)
- Dominant structure: Sporophyte generation is more dominant in structure
- Other characteristics:
1. Reproduce via spores produced in structures called sporangia.
2. Exhibit well-developed leaves called fronds and often have underground stems (rhizomes).
Conifers (Gymnosperms):
- Example: Conifers such as pine trees (e.g., Pinus) and spruces (e.g., Picea)
- Vascular tissue: Have true vascular tissue (xylem and phloem)
- Dominant structure: Sporophyte generation is more dominant in structure
- Other characteristics:
1. Produce seeds in cones.
2. Typically have needle-like or scale-like leaves and are often evergreen.
Flowering plants (Angiosperms):
- Example: Flowering plants include roses (e.g., Rosa), sunflowers (e.g., Helianthus), and oak trees (e.g., Quercus)
- Vascular tissue: Have true vascular tissue (xylem and phloem)
- Dominant structure: Sporophyte generation is more dominant in structure
- Other characteristics:
1. Produce flowers for sexual reproduction.
2. Seeds are enclosed within fruits.
3. Have a wide range of forms, from small herbs to large trees.
Please note that the examples provided are just a few representatives of each plant group, and there are many more species within each group.
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The muscular system and the skeletal system are two different organ systems, but they’re often referred to jointly as the musculoskeletal system. Why do you think the word musculoskeletal exists? What similarities in functions do you think the muscular system and skeletal system have?
Answers
Answer:
Plato answer: This word exists because both systems are involved in movement and support of the body, and they work together to perform these functions. Bones provide support and give the body structure. Muscles give strength, and the contraction and relaxation of muscles allow for different movements.
Explanation:
Another Answer: The muscular system is responsible for the movement of the human body. Attached to the bones of the skeletal system are about 700 named muscles that make up roughly half of a person's body weight. Each of these muscles is a discrete organ constructed of skeletal muscle tissue, blood vessels, tendons, and nerves.
Answer:
Plato answer: This word exists because both systems are involved in movement and support of the body, and they work together to perform these functions. Bones provide support and give the body structure. Muscles give strength, and the contraction and relaxation of muscles allow for different movements.
Another Answer: The muscular system is responsible for the movement of the human body. Attached to the bones of the skeletal system are about 700 named muscles that make up roughly half of a person's body weight. Each of these muscles is a discrete organ constructed of skeletal muscle tissue, blood vessels, tendons, and nerves.