Answers
volcanoes because they are built from the earth
Explanation:
Related Questions
The theory of endosymbiosis proposes that eukaryotes descended from a primitive combination of both archaea and bacteria. What evidence supports this theory?
Answers
The theory of endosymbiosis proposes that eukaryotes descended from a combination of both archaea and bacteria. Evidence that supports this theory includes the similarities between mitochondria and chloroplasts to free-living bacteria, the presence of double membranes around mitochondria and chloroplasts, and the fact that mitochondria and chloroplasts have their own DNA.
Explanation:
The theory of endosymbiosis proposes that eukaryotes descended from a combination of both archaea and bacteria. Evidence that supports this theory includes the similarities between mitochondria and chloroplasts to free-living bacteria, the presence of double membranes around mitochondria and chloroplasts, and the fact that mitochondria and chloroplasts have their own DNA.
Mitochondria and chloroplasts contain some of the same enzymes and transport systems as bacteria, and are similar in size and shape to bacteria. In addition, they both reproduce by binary fission, similar to bacteria. The presence of double membranes around mitochondria and chloroplasts also supports the theory of endosymbiosis, as this suggests that the organelles were engulfed by the host cell and retained their own membranes.
Finally, mitochondria and chloroplasts have their own DNA, which is circular like bacterial DNA. The DNA of mitochondria and chloroplasts also lacks histones, which are present in eukaryotic DNA, and is more similar to bacterial DNA in terms of gene expression and replication.
Together, these lines of evidence support the theory of endosymbiosis and suggest that mitochondria and chloroplasts were once free-living bacteria that were engulfed by a host cell and evolved into the organelles found in eukaryotic cells today.
Cystic fibrosis is a condition passed on through which type of inheritance?
Answers
Isabella has two brothers. One has brown hair and brown eyes like she does, while the other has dark
blonde hair and blue eyes. Knowing they all share the same parents, she wonders how one brother can be
so different. Which answer below best explains how the differences are possible?
Answers
Answer:
They get different genes from each parent.
Explanation:
which of the following is not function of the skeletal system that protects the delicate organs of the body it supports the body see its transports food to the different parts of the body the its enables the body to move please help me please
Answers
Explanation:
Option D:production of body heat: The skeleton serves six major functions: support, movement, protection, production of blood cells, storage of minerals and endocrine regulations. Hence, production of body heat is not a function of the skeletal system.
The major functions of the skeletal system are body support, facilitation of movement, protection of internal organs, storage of minerals and fat, and blood cell formation
Gametes are ______ They have ______ the number of chromosomes.
1) diploid; double the number of
chromosomes.
2) diploid; half the number of chromosomes.
3) haploid; double half the number of chromosomes.
4) haploid; half the number of chromosomes.
Answers
Answer:
4. haploid half the number of chromosomes
brown rabbits have the genotype BB or Bb. White rabbits have the genotype bb. If two brown rabbits, with the genotypes seen in the Punnett square above, have baby rabbits, what is the probability that the baby rabbits will also be brown?
a) 25%
b)50%
c)75%
d)100%
Answers
Explanation:
BB: brown
Bb: brown
bb: white
Since you didn't give the variables, here is how you make a punnet square:
Make a box with four boxes inside.
_______________
| | |
| | |
_______________
| | |
| | |
_______________
Put the variables on each side:
Example:
____B_____b____
B| | |
| | |
_______________
b| | |
| | |
_______________
then fill in :
____B_____b____
B| BB | Bb |
| | |
_______________
b| | |
| Bb | bb |
_______________
Do all hardwood trees lose their leaves in winter
Answers
Answer:
I believe the answer is no
Did Blue Origin fly into outer space?
Answers
Answer:
Yes Blue Origin did
Ribbon and molecular surface renderings of just the enzyme in 4SKN (with and without the DNA substrate) indicate that ________ is bound in a deep active site, while a ________ loop stretches across the top of the active site and interacts with the DNA substrate.
Answers
Answer:uracil, hydrophilic
Explanation:
Jake has become very anxious ever since he started taking harder classes in his major.
The university's counselor diagnosed him with an anxiety disorder. Compare and contrast how the behavioral, humanistic, and cognitive approaches would view the origins and treatment of Jake's anxiety. Then, describe how psychologists view each of
the three approaches today."
Answers
The behavioral, humanistic, and cognitive approaches provide different perspectives on the origins and treatment of Jake's anxiety.
The behavioral approach would view Jake's anxiety as a learned response that has been reinforced over time. They might suggest that Jake's anxiety is a result of negative experiences or associations with his academic performance, leading to increased anxiety symptoms. Treatment would focus on identifying and modifying maladaptive behaviors through techniques such as exposure therapy and behavior modification.
The humanistic approach would emphasize Jake's self-actualization and personal growth. They might view his anxiety as a result of a discrepancy between his self-concept and the challenges he is facing in his major.
Treatment would involve providing a supportive and empathetic environment where Jake can explore his feelings and values, with the goal of helping him align his personal goals with his academic pursuits.
The cognitive approach would focus on Jake's thoughts and beliefs about his academic performance. They would suggest that his anxiety stems from negative and distorted thinking patterns, such as excessive self-criticism or catastrophic thinking.
Treatment would involve cognitive restructuring, helping Jake identify and challenge irrational thoughts, and developing more adaptive and realistic thinking patterns.
In contemporary psychology, these approaches are not seen as mutually exclusive, but rather complementary. Psychologists recognize that a multidimensional approach, integrating elements from different perspectives, can provide a more comprehensive understanding of psychological issues.
Treatment approaches often combine techniques from various approaches to address the unique needs of each individual, emphasizing a holistic and personalized approach to mental health.
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What happens to the air pressure as you go higher in the atmosphere?
The air pressure gets lower because there is less air above you.
The air pressure gets lower because there is more air above you.
The air pressure remains the same.
Answers
Answer:
(a) The air pressure gets lower because there is less air above you
Explanation:
You want to know what happens to the air pressure as you go higher in the atmosphere.
Air pressureThe air pressure at a given point is effectively the weight of the column of air above that point. As you go higher in the atmosphere, more air is below you, and less air is above you. This causes the air pressure to decrease with altitude.
As you go higher, ...
The air pressure gets lower because there is less air above you
__
Additional comment
When you reach outer space, there is no air above you, and the air pressure is zero.
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What is the danger of combining foods?
Answers
Answer:
There could be chemical reactions like indigestion, fermentation, putrefaction and gas formation and, if prolonged, can lead to toxemia and disease.
Explanation:
Answer:
Bad food combinations can lead to stomach ache, bloating, fatigue, gas, and discomfort. If you continue consuming the wrong food combinations for a long period, it can result in rashes, chronic digestion problems, and bad breath.
Explanation:
how does a Temperature & Phase Change relate to a human and to the environment.
Answers
The human body is able to regulate its internal temperature through a process known as thermoregulation.
What is thermoregulation?
This process involves the release of heat through mechanisms such as sweating and the constriction or dilation of blood vessels. A change in external temperatures, such as exposure to extreme heat or cold, can disrupt this process and lead to conditions such as hypothermia or hyperthermia.
Phase change includes the melting of ice or the boiling of water. it can also have an impact on the environment. For example, the melting of glaciers and ice caps due to rising temperatures can contribute to sea level rise, which can have a variety of negative effects on coastal communities and ecosystems. Similarly, the boiling of water can lead to the formation of steam, which can be harnessed as a source of energy but also can cause severe damage in case of eruption or explosion.
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Identify one misconception about the theory of evolution.
Answers
Using natural selection, evolution is the process by which a species' characteristics change over several generations. The three constraints of Darwin's hypothesis concern the beginning of DNA, the unchangeable intricacy of the cell, and the lack of momentary species.
When a species splits into multiple new forms as a result of a shift in the environment that opens up new resources or introduces new environmental obstacles. Darwin's finches on the Galapagos Islands have created different molded snouts to exploit the various types of food accessible on various islands.
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What is a map? How are maps used, and what is their purpose?
Answers
Answer:
Reference maps show the location of geographic boundaries, physical features of Earth, or cultural features such as places, cities, and roads.
Explanation:
Answer:
It is a representation of a place in which the relationship toward time and space is perceived. The purpose of maps are to provide visual representations of the physical features of the Earth to teach and guide. Maps are used to navigate from one place to another, to know the location of an area or region, and to measure distances from certain locations.
Explanation:
The dog are an example of what type of , because the flea irritates the dogs skin and feeds on it blood
Answers
Answer: parasite
Explanation: I dont know what word was supposed to come after "of", but judging by all the surrounding words, its seems that the answer is parasite. Hope this helps!
Spillage is a problem associated with which of the following types of mining?
Responses
surface mining
fracking
sub-surface mining
drilling
Answers
Spillage is a problem associated with drilling
What is drilling of oil?Drilling for oil is the process of creating a well to extract petroleum from underground reservoirs. The process begins with the selection of a suitable site, usually based on geological data, aerial surveys, and seismic studies. Next, a rig is constructed and equipment is brought to the site to drill the well.
The extracted oil is then transported to a processing facility for refining and distribution. Drilling for oil is a complex and expensive process, but it is essential for meeting the world's growing energy needs.
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Dew point is the temperature to which air would have to be warmed (with no change in air pressure or moisture content) for saturation to occur.
a. True
b. False
Answers
Answer:
A True
Explanation:
Answer:
a. True
Explanation:
The dew point is the temperature at which air is saturated with water vapor and condensation occurs. When the temperature of the air reaches the dew point, moisture condenses into droplets, forming dew, fog, or cloud. The dew point is an important measure of atmospheric moisture and can have a significant impact on weather and climate. A high dew point indicates a high amount of moisture in the air, while a low dew point indicates low atmospheric moisture. The dew point is calculated based on the temperature and relative humidity of the air, and can be used to forecast the likelihood of precipitation or other weather-related events.
why do species aseed their carrying cascade
Answers
Answer:A trophic cascade is what happens when predators keep their prey in check. This can mean that they make sure they don’t overpopulate or they keep them moving around so they don’t overeat and destroy the vegetation around them. This allows for the prey species below their prey to survive better.
Explanation:
The four levels of protein structure are primary, secondary, tertiary, and quaternary structure. Review the levels of protein structure by clicking the image below.
Drag each label into the appropriate bin depending on whether it applies to primary, secondary, tertiary, or quaternary structure.
Answers
Proteins are composed of a sequence of amino acids linearly arranged. To accomplish their functions thet must adopt different structures. Primary structure: Amino acid sequence. Secondary structure: Alpha helix. Beta pleated sheet. Results from hydrogen bonding between the backbone constitutents of the polypeptide. Tertiary structure: Results from interaction between side chains (R groups) of amino acids. The overall shape of the polypeptide. Quaternary structure: The aggregation of multiple polypeptide subunits.
What is the protein structure?Proteins are molecules composed of several amino acids.
Amino acids are monomers composed of
a central carbon, a hydrogen atom, a carboxyl group (COOH), an amine group (NH₂), and an R group.
The R group is what differentiates one amino acid from another one.
Several amino acids linearly arranged and connected by peptidic bonds compose the polypeptide.
The peptidic bond is the union of two amino acids by their carboxyl and amine groups.
The R group of each amino acid stabilizes the molecule through their interactions.
The amount of amino acids that compose the polypeptide and their order in the chain determines the primary structure of the protein. The primary structure of the proteins determines the tertiary one.
Protein functions also depend on the amino acid sequences. Proteins with different functions have different sequences. And among species, proteins with similar functions have similar structures.
The primary structure is basically, the sequence of amino acids in the chain. It refers to the amino acid arrangement.
The secondary structure is achieved through hydrogen bonds (between -CO- and -NH- groups), when the polypeptidic chain folds and different regions of the molecule get in touch. The molecule can adopt conformations like the alpha-helix and beta-sheet.
The three-dimensional structure involves a higher folding degree, in a tridimensional space. This level makes the protein even more stable in the environment and capable of accomplishing its functions.
The quaternary structure can be seen when proteins are composed of more than one subunit. The way in which these subunits arrange is the fourth structure.
The hydrophilic R-groups stay permanently in the molecule interior, avoiding interaction with water.
In the image,
Primary structure: Amino acid sequenceSecondary structure: Alpha helix. Beta pleated sheet. Results from hydrogen bonding between the backbone constitutents of the polypeptide.Tertiary structure: Results from interaction between side chains (R groups) of amino acids. The overall shape of the polypeptide. Quaternary structure: The aggregation of multiple polypeptide subunits.You can learn more about protein structure at
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According to the graph, in the United States how much land is used by cities compared to other land uses?
A- Cities use one third as much of the land as forests.
B- Cities use very little land compared to any other category.
C- Cities use half as much land as agriculture.
D- Most land is used by cities.
Answers
Answer:
(B IS THE ANSWER)as it's not half of anything as amount is too small and it isn't half as agriculture as you can see
what harmones do ovaries produce
Answers
explain how some substances cross the cell membrane by facilitaded diffusion
Answers
According to the research, the correct answer is some substances cross the cell membrane by facilitated diffusion through the use of transporters or carriers.
What is facilitated diffusion?It is a type of transport that requires carrier proteins or transport proteins that are usually located in the membrane.
In this sense, it is used by uncharged water-soluble molecules or charged particles since, due to their water solubility, they are not able to freely cross the lipid bilayer by simple diffusion.
Therefore, we can conclude that facilitated diffusion uses specific membrane transport proteins that allow certain charged molecules to cross the cell membrane.
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You know that all eleven body systems work together in the human body. What would happen if a system stopped working?
Answers
Answer: Every organ system is important for the body and if one of them stops working the entire body would collapse and be dysfunctional. After one system shuts down, the others would slowly start to shut down as well until the body can no longer maintain homeostasis and the person would slowly die.
Explanation: Some body systems work together to complete a job. For example, the respiratory and circulatory systems work together to provide the body with oxygen and to rid the body of carbon dioxide. The lungs provide a place where oxygen can reach the blood and carbon dioxide can be removed from it.
Answer:
The biological processes halt and one dies.
Explanation:
Biological operations are key to life.
The water cycle can have an influence on
Answers
Question 6
Put the steps of the Gram stain procedure in the correct order
Answers
Gram staining is a laboratory test that can help diagnose the presence of the bacterial infection quickly and it also helps to diagnose the harmful bacteria.
Under Gram Stain: There are certain stain which change colours under specific type of stains and are classified as Gram positive and Gram negative based on this.
The steps of Gram Stain Procedure in order are
1. Applying a primary stain (crystal violet).
2. Adding a mordant- generally-IODINE
3. Rapid decolorization with ethanol, acetone or a mixture of both.
4. Counterstaining with safranin.
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What are the negative effects of rising ocean temperatures? Check all that apply
the melting of glaciers and polar ice caps
the drying out of fertile land and the formation of dust bowls
the flooding of low-lying coastal areas
the faster evaporation of water in the soil
the decreased frequency of major storms
Answers
Answer:
the melting of glaciers and polar ice caps
and
the flooding of low-lying coastal areas
Explanation:
Answer:B
Explanation:I got it right.
Which structures can be found on a protist but not on a fungus?
Answers
Answer:
See the answer below
Explanation:
First, there is a need to know that protists are unicellular, animal-like living organisms while fungi are unicellular/multicellular, achlorophyllous, and heterotrophic decomposing organisms.
A typical protist may have a plant-like cell wall or just an animal-like cell membrane without a cell wall. This is unlike fungi whose structure includes a rigid, chitin-containing cell wall.
Most protists also have locomotive structures that enable them to be motile. For example, the amoeba has pseudopodia, the paramecium has cilia, while the euglena has flagella. Fungi generally are immotile, that is, they do not have any locomotive structure that enables them to move.
Some protists have two vacuoles - contractile and food vacuoles - which assist them in essential functions such as osmoregulation and nutrition. Unicellular fungi such as yeasts only have a single vacuole.
Some protists such as the euglena have chloroplast which enables them to photosynthesize in addition to other forms of nutrition. Fungi generally, however, are achlorophyllous. They lack chloroplast/chlorophyll in any form.
Eukaryotic cell diagram
Answers
Answer:
the diagram of a basic eukaryotic cell
Explanation:
For the Haber process, N2 + 3H2→2NH3, what theoretical volume of ammonia (NH3) should be produced if we start with 5.0L of N2 if STP?
44.8 L
22.4 L
10.0 L
29.9 L
Answers
For the Haber process, N2 + 3H2→2NH3,10.0 L is the theoretical volume of ammonia (NH3) should be produced if we start with 5.0L of N2 if STP. Therefore, option C is correct.
What is the Haber process ?In the Haber process, “the atmospheric nitrogen (N2) is changed to ammonia (NH3) by reacting it with hydrogen (H₂)”. A metal catalyst is used and high temperatures and pressures are maintained.
The balanced equation for the reaction is as follows:
N₂(g) + 3H₂(g) ⇾ 2NH₃(g)
From the balanced equation,
1 L of N₂ reacted to produce 2 L of NH₃ at STP
From the above information, we can obtain the volume of ammonia, NH₃ produced from 5.0 L of N₂ at STP. Details below:
From the balanced equation,
1 L of N₂ reacted to produce 2 L of NH₃ at STP
Then,
5.0 L of N₂ will react to produce = 5.0 × 2
= 10.0 L of NH₃ at STP
Thus, option C is correct
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