Some animals include, among others, mammals (cats, dogs, dolphins), birds,reptiles (lizards), fish, amphibians, arthropods, etc.
What is an animal?An animal is an organism belonging to the Kingdom Animalia, which includes invertebrates such as arthropods (e.g., arachnids) and vertebrates such as mammals and fish.
Animals are characterized to share certain features such as oxygen respiration, movement, heterotrophic habits (because they need other food sources to survive), sexual reproduction, etc.
In conclusion, some animals include, among others, mammals (cats, dogs, dolphins), birds,reptiles (lizards), fish, amphibians, arthropods, etc.
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Can environmental factors influence the expression of traits?
Answer:
Environmental Factors Interact with Genes
Environmental factors often influence traits independently of genes. But not always. Sometimes the environment changes a gene—either its DNA sequence or its activity level. Either of these effects can change the proteins that are made from a gene, which in turn affects traits.
Though it occurs naturally in lakes, human activities can increase
A the water table
B eutrophication
C tributaries
D reservoirs
Human activities can increase eutrophication. Option B
What is known as eutrophication?The process through which a body of water, such as a lake or river, gets enriched with nutrients, mainly nitrogen and phosphorus, is what is called eutrophication.
This water enrichmnt can be caused by natural or human activities like agriculture, wastewater treatment plant discharge, or air pollution from fossil fuels
Eutrophication can affect aquatic ecosystems negativly. This can lead to loss of biodiversity, or evn changes in the food web. It is also known to reduced recreational and beauty of of our water bodies.
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What are the functions of a petal
Question 1 A heterozygous yellow-seeded plant is crossed with a homozygous yellow seeded plant. i. ii. Question 2 Complete the punnet square and write the genotypic and phenotypic ration for the possible offsprings. (3 marks) Genotypic ration Phenotypic ration What is the probability of having a pure breeding green seeded offsprings (2 marks) What is the probability of having a yellow-seeded plant in F2 generation, when a true breeder from F1 is crossed with a non-true breeding yellow seeded plant? (2 marks)
Answer:
Explanation:
To solve this problem, let's represent the heterozygous yellow-seeded plant as "Yy" and the homozygous yellow-seeded plant as "YY."
i. When crossing a heterozygous yellow-seeded plant (Yy) with a homozygous yellow-seeded plant (YY), we can set up a Punnett square to determine the possible offspring genotypes:
Y Y
y Yy Yy
y YY YY
ii. The genotypic ratio is 2:2 or 1:1 for the possible offspring genotypes: Yy and YY.
The phenotypic ratio is also 2:2 or 1:1 for the possible offspring phenotypes: yellow-seeded (YY and Yy).
Question 2:
To determine the probability of specific outcomes, we need additional information about the parental genotypes and their inheritance patterns. Please provide the genotypes of the true breeder from F1 and the non-true breeding yellow-seeded plant for a more accurate calculation.
A type of inheritance in which codominant traits are expressed together is called
Answer:
the answer would be A
Explanation:
Where are the Galápagos Islands located?
Answer:
Pacific Ocean
The Galapagos Islands are located 1000 km off Ecuador's coast in the Pacific Ocean. The Galapagos archipelago consists of 13 major islands, 6 smaller islands and many islets.
Explanation:
Multiple Choice
Which of the following was the commonly held idea before Galileo's experiment of dropping weights off the Tower of Pisa?
O Lighter objects fall faster than heavier objects
O Objects fall at different speeds based upon volume, not mass
O Objects fall at the same speed regardless of mass
O Heavier objects fall faster than lighter objects
Third Answer: Objects fall at the same speed regardless of mass
Explanation:
The government arrested him for this.
The colorless root like projections of mosses, liverworts, and hornworts, which anchor them to the substrate are called
Answer:
Rhizoids
Explanation:
Mosses, liverworts, and hornworts are three groups of a division of plants called BRYOPHYTA. These division of plants are referred to as "lower plants" because of their primitive features. They are non-vascular i.e they do not possess vascular conducting tissues e.g xylem, phloem etc.
In addition to this, bryophytes (mosses, liverworts, and hornworts) do not have true roots and leaves like other plants. Instead, they possess colorless root like projections called RHIZOIDS, which they use to anchor themselves to the substrate and absorb water.
Two closely-related insect species are being discovered. Scientist are focusing on how long it takes each to develop limb buds following fertilization. What evidence of evil outlook is this an example of
o Explanation:
o gecromo e oo rat
Most serious side effects occur when steroids are
O prescribed by doctors.
O taken by children.
O absorbed through the skin
O taken for long periods.
Explain how diffusion restored homeostasis during the dialysis treatment.
During dialysis, diffusion facilitates the movement of waste products and excess fluids out of the blood, restoring homeostasis.
During dialysis treatment, diffusion plays a crucial role in restoring homeostasis. Homeostasis refers to the body's balanced state, where the levels of various substances are maintained within a narrow range. In the context of dialysis, diffusion refers to the movement of solutes across a semipermeable membrane.In hemodialysis, the patient's blood is circulated through a dialyzer, which contains a semipermeable membrane. On one side of the membrane, the patient's blood flows, while on the other side, a dialysate fluid flows. Due to a concentration gradient, solutes like urea, creatinine, and excess electrolytes in the blood diffuse across the membrane into the dialysate fluid.This diffusion process helps remove waste products and excess fluids from the blood, bringing it closer to the normal physiological range. By restoring the balance of solutes and maintaining proper fluid levels, diffusion in dialysis aids in restoring homeostasis and promoting the overall well-being of the patient.For more such questions on Dialysis:
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The age of material on a tectonic plate depends in part on what type of crust it is composed of. 1)_____ tends to be younger because it is continually produced at the
2)______ and then recycled. On the other hand, 3)_______ tends to be older because it can often remain intact for longer periods.
Fill In Blanks
1) Ocean floor
Oceanic Crust
Continental Crust
2) Deep sea Vents
Hot spots
Mid oceanic ridges
3) Continental crust
Oceanic Crust
Ocean Floor
SOMEONE HELP PLEASE AMD FAST!
Continental crust, Oceanic Crust, Lithospheric Plate The age of material on a tectonic plate depends in part on what type of crust it is composed .
What is Oceanic Crust?
Oceanic crust is the outermost layer of the Earth's lithosphere which forms the ocean floor. It is composed of mafic igneous rocks such as basalt and gabbro. It is typically 5 to 10 km thick and is the youngest layer of the Earth's lithosphere.
Oceanic crust is formed by seafloor spreading at mid-ocean ridges, which occur when two tectonic plates are pulling apart from each other. This causes molten material from the mantle to rise up and cool, forming new oceanic crust. The newly formed crust then moves away from the mid-ocean ridge in both directions, forming a diverging boundary. As it moves away from the ridge, the oceanic crust cools and becomes denser and denser.
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Which structure has the least effect on the ability of a virus to infect and replicate in a host cell?
envelope
capsid
DNA
ribosome
Answer:
ribosome
Explanation:
just took the test
The ability of a virus to infect and reproduce in a host cell is least affected by ribosome. So, the correct option is D.
What is Ribosome?All cells include ribosomes, which are large molecules responsible for the synthesis of biological proteins. To create polypeptide chains, ribosomes combine amino acids in the order dictated by the messenger RNA molecules' codons. The short and big ribosomal subunits are the two main parts of ribosomes.
Both eukaryotic and prokaryotic cells contain ribosomes, which are specialized cell organelles. Ribosomes are essential for the creation of proteins in every live cell. The messenger ribonucleic acid (mRNA) that this cell organelle binds to carries information that is decoded by the mRNA's nucleotide sequence.
They enter the ribosomal at the acceptor site and transfer RNAs (tRNAs) that contain amino acids. Once bound, it adds amino acids to the expanding protein chain on the target surface. The ability of a virus to infect and reproduce in a host cell is least affected by ribosome.
Therefore, the correct option is D.
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Name 3 hormones that have a direct impact on calcium metabolism relating to the skeletal system
Answer:
Three major hormones (PTH, vitamin D, and calcitonin) interact to maintain a constant concentration of calcium, despite variations in intake and excretion.
Explanation:
The second major hormone involved in the regulation of calcium metabolism and skeletal remodeling is vitamin D, which includes cholecalciferol (vitamin D3) of animal origin, as well as ergocalciferol (vitamin D2) of plant origin.
Choose the correct answer from the two choices you are given.
1. (Parallax, Spectroscopy) is used to determine how far away stars are.
2. Enzymes are (catalysts, organelles) that help cells make energy.
3. Mitochondria, lysosomes, and vacuoles are (organelles, proteins) inside cells.
4. (Ethologists, Anthropologists) are scientists who study animal behavior.
Parallax is used to determine how far away stars are.
Parallax is a measurement technique that astronomers use to determine the distance to nearby stars. It involves observing the apparent shift in the position of a star as the Earth orbits the Sun. By measuring this shift, astronomers can calculate the distance to the star using trigonometry.
Enzymes are catalysts that help cells make energy.
Enzymes are specialized proteins that act as catalysts in biological reactions. They facilitate and accelerate chemical reactions in cells, including those involved in energy production. Enzymes play a vital role in processes such as cellular respiration, where they help break down nutrients and convert them into usable energy molecules like ATP (adenosine triphosphate).
Mitochondria, lysosomes, and vacuoles are organelles inside cells.
Mitochondria, lysosomes, and vacuoles are all examples of organelles found inside cells. Organelles are specialized structures within cells that perform specific functions. Mitochondria are responsible for producing energy through cellular respiration. Lysosomes contain enzymes that break down waste materials and cellular debris. Vacuoles are membrane-bound sacs involved in storing various substances, maintaining cell turgor, and facilitating cellular processes.
Ethologists are scientists who study animal behavior.
Ethologists are scientists who specialize in the study of animal behavior. They observe, analyze, and seek to understand the behavioral patterns, social interactions, and ecological relationships of animals in their natural environments. Ethologists use various research methods, such as field observations and experiments, to investigate animal behavior and gain insights into their evolutionary and ecological significance. Anthropologists, on the other hand, study various aspects of human societies, cultures, and behavior.
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We have been thinking about two claims that are possible explanations for how the channel on Mars was formed. We have considered evidence from images, as well as from the Flowing Water Model and the Flowing Lava Model.
1. Select the claim you think is best supported by the evidence you have seen so far.
Responses
Claim 1 Flowing water formed the channel on mars.
Claim 2 Flowinglava formed the channel on mars.
Why do you think the claim you selected is best supported by the evidence?
Based on the evidence provided by images, the Flowing Water Model, and the Flowing Lava Model, it is important to note that I don't have access to specific evidence or the ability to analyze images. However, I can provide a general perspective on how to evaluate the claims based on evidence.
If the evidence from images shows features consistent with erosion patterns typically associated with water flow, such as meandering channels, sediment deposits, or evidence of water-related processes, then Claim 1, stating that flowing water formed the channel on Mars, maybe better supported.
On the other hand, if the evidence indicates features resembling lava flows, such as volcanic features, basaltic rock formations, or characteristics commonly associated with volcanic activity, then Claim 2, suggesting that flowing lava formed the channel on Mars, could be better supported.
To determine which claim is best supported, it is crucial to carefully analyze the evidence, considering factors such as the morphology of the channel, the presence of specific minerals or geological features, and any other relevant observations that align with known processes of water or lava flow.
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Discuss how the concept of "survival of the fittest" was developed and what it means.
Explanation:
Survival of the fittest is a phrase that originated from Darwinian evolutionary theory as a way of describing the mechanism of natural selection.In On the Origin of Species, he introduced the phrase in the fifth edition published in 1869, intending it to mean "better designed for an immediate, local environment".
Answer:
there right^
Explanation:
edge22
please help! ♥️ i really need to get this done.
Answer:
3, 8.5
Explanation:
A woodpecker eats insects that live deep in wood. Which of the following is true?
A woodpecker with a short beak will have an easier time getting its basic needs.
A woodpecker with a long, soft beak will have an easier time getting its basic needs.
A woodpecker with a soft beak will have an easier time getting its basic needs.
A woodpecker with a long, hard beak will have an easier time getting its basic needs.
Answer:
D)
Explanation:
D) A woodpecker with a long, hard beak will have an easier time getting its basic needs.
Woodpeckers use their beaks to drill into wood to access insects that live inside. A long, hard beak is more effective for drilling into wood than a short or soft beak, making it easier for the woodpecker to get its basic needs. A long, hard beak allows the woodpecker to apply greater force and penetrate deeper into the wood to reach the insects.
In contrast, a short beak may not be long enough to reach deep into the wood, while a soft beak may not be strong enough to apply the necessary force. Therefore, a woodpecker with a long, hard beak will be better adapted for accessing insects that live deep within wood and will have an easier time getting its basic needs.
(Please give brainlist)
In a dihybrid cross between two pea plants, one parent is green pod-purple flower (GgPp). The other parent’s genotype is unknown. The phenotype f ratio of their offspring is (1 Green Pod-Purple Flower : 1 Yellow Pod-Purple Flower). What is the genotype of the unknown parent?
The unknown parent's genotype in the dihybrid cross is likely GgPp. This genotype would result in a 1:1 phenotypic ratio of green pod-purple flower to yellow pod-purple flower offspring.
In a dihybrid cross, we consider two independent traits. In this case, the traits are pod color (green or yellow) and flower color (purple). The known parent's genotype is GgPp, where G represents the dominant allele for green pod color, g represents the recessive allele for yellow pod color, P represents the dominant allele for purple flower color, and p represents the recessive allele for non-purple (white) flower color.
Since the phenotypic ratio of the offspring is 1 green pod-purple flower : 1 yellow pod-purple flower, we can infer the possible genotypes of the unknown parent. The observed phenotypic ratio suggests that both parents contribute equally to the offspring's traits. Therefore, the unknown parent likely carries the same genotype, GgPp.When the unknown parent's genotype is GgPp, it means that it can produce two types of gametes: GP and gP. The known parent, GgPp, can also produce two types of gametes: GP and gP. The cross between these parents can result in four possible genotypes for the offspring: GGPp, GgPp, Ggpp, and ggPp. However, only two of these genotypes correspond to the observed phenotypic ratio: GgPp (green pod-purple flower) and ggPp (yellow pod-purple flower).Therefore, the genotype of the unknown parent is likely GgPp, which produces the desired 1:1 phenotypic ratio of green pod-purple flower to yellow pod-purple flower in the offspring.
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A biologist is studying how green sea turtles choose where to lay their eggs. She makes a hypothesis that because this species is related to other sea turtles through common ancestry, they probably all use the same process. This biologist formed her hypothesis using:________
a. A hunch
b. The unifying theory of evolution
c. Experimentation
d. The scientific method
e. Observations of green sea turtles' behavior
Answer:
Option b
Explanation:
Hypotheses are carried out as proposed explanation made on the basis of limited evidence which serves as a beginning point for further study.
The biologist in this case has a limited evidence with regards to this species which is just only about its ancestry, so her hypothesis was based on the unifying theory of evolution which is the framework within which biologists ask questions about the living world providing predictions with regards to directions about living things.
The correct answer, unequivocally, is (B).
- This is because she used her knowledge that, from an standpoint of evolution, these turtles were related to each other.
A. Write 'T' for true and 'F' for false sentences.
1. Herbivores have sharp cutting teeth. 2. We give nutritious food to cows and buffaloes to make them strong.
3. Flesh eating animals have strong chewing teeth.
4. A frog chews its prey before it swallows.
5. Eagles have strong claws to tear up flesh..
Answer:
3.flesh eat animals have strong chewing teeth it is __F
Answer:
f
Explanation:
because of all the chewing they do , it wears down the teeth
Which of the following processes releases carbon into the air? (5 points)
Answer:
Explanation:
Combustion of fossil fuels: Burning coal, oil, and natural gas to produce energy releases carbon dioxide (CO2) into the atmosphere.
Other processes that can release carbon into the air include:
Deforestation: Trees absorb carbon dioxide through photosynthesis, and cutting down forests can release the carbon stored in the trees and soil.
Volcanic activity: Volcanic eruptions can release carbon dioxide and other greenhouse gases into the atmosphere.
Decomposition: When organic matter such as plants, animals, and other living organisms decompose, they release carbon dioxide and other gases into the atmosphere.
Ocean outgassing: The ocean absorbs and releases carbon dioxide as part of its natural cycles, and some of this carbon can be released into the air.
It's important to note that while some of these processes are natural, human activities such as burning fossil fuels and deforestation have significantly increased the amount of carbon dioxide in the atmosphere, leading to climate change.
what type of chemical reactions do the 1-4 straight chain alkanes undergo?
1-4 straight chain alkanes, also known as n-alkanes, undergo various types of chemical reactions, depending on the conditions and reactants involved.
What type of chemical reactions do 1-4 straight chain alkanes undergo?Some of the common reactions that 1-4 straight chain alkanes can undergo:
Combustion: Alkanes can burn in the presence of oxygen to form carbon dioxide and water, releasing heat and energy.
Halogenation: Alkanes can react with halogens such as chlorine or bromine to form alkyl halides. This reaction usually requires the presence of a catalyst or UV light.
Nitration: Alkanes can react with nitric acid and sulfuric acid to form nitroalkanes. This reaction is also called nitration of alkanes.
Isomerization: Alkanes can undergo isomerization, where the position of the carbon-carbon bonds in the molecule is rearranged.
Cracking: Alkanes can be cracked, which means they are broken down into smaller molecules.
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Which of the following examples of biotechnology are also examples of genetic engineering technology? Check all that apply.
A.
⎯ Poplar trees that have been genetically altered to absorb and break down groundwater pollutants through their roots
⎯ Bananas that have been altered to produce human vaccines. The affects of eating such a banana is similar to receiving a traditional vaccine.
⎯ Glow-in-the-dark mice
⎯ Cloning a sheep
Answer:
All options are techniques of genetic engineering
Explanation:
Genetically modified organisms (GMOs) are organisms whose genetic material has been manipulated by using genetic engineering techniques. GMOs generally exhibit some beneficial features such as, in this case, GMO poplar trees that absorb and break down groundwater pollutants. Moreover, plants and other organisms can also be modified by genetic engineering techniques in order to use them as biofactories that synthesize some chemical compound capable of triggering an immune response (for example, bananas have been used to produce vaccines for diarrhea). Moreover, the Green Fluorescence Protein (GFP) is a protein widely used in genetic engineering that can be inserted into the genome of animals and/or other species by transgenic methods. This protein (GFP) is used in genetic engineering in order to monitor gene expression patterns, localize proteins in the cells, determine mobility, determine protein-protein interactions, etc. Finally, cloning is a genetic engineering technique used to produce organisms that are genetically identical copies of other organisms (i.e., clones). A sheep called Dolly was the first animal clone, which was cloned by using an adult sheep cell.
Please help with this question ignore my lines they might be wrong
The correct links for the definitions and their characteristics including sex chromosomes and reproduction is:
Sex chromosomes: Found as XX or XY genotype in humans.Sex linkage : XY genotype in the organism results in X chromosomes carrying recessive characteristics being expressedHomozygous: An organism that possesses identical alleles of a particular gene.Haploid : Cell which has a single set of unpaired chromosomesPhenotype : Characteristics of an organism determined by interaction of genes: Homologous chromosomes: Possesses the same number and pattern of genes but may have different allelesWhat are some terms in reproduction ?Sex chromosomes are a pair of chromosomes that determine the sex of an individual. XY genotype in the organism results in X chromosomes carrying recessive characteristics being expressed
Haploid refers to a cell or organism that has a single set of unpaired chromosomes. Homozygous refers to an organism that possesses identical alleles of a particular gene. Phenotype refers to the observable traits or characteristics of an organism, which are determined by the interaction of genes with the environment.
Homologous chromosomes are a pair of chromosomes that have the same number and pattern of genes, although they may have different alleles.
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WILL MARK BRAINLIEST!
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Which best describes salts?
a. organic substances
b. inorganic substances
c. made of carbohydrates
d. made of lipids
(15 pts)
(its really environmental science but thats not a subject on here so sorry ;-;)
Answer:
inorganic substances
Explanation:
There are both organic and inorganic salts. However, salts like table salt (sodium chloride), baking soda (sodium chloride), calcium carbonate, and muriatic acid (industrial-grade hydrochloric acid) are some of the commonly known inorganic compounds. So, to highlight it, table salt or food salt that humans consume are inorganic compounds.
explain the difference between self pollination and cross pollination
Answer:
Self pollination occurs when there's a transfer of pollen grains from the anther of a flower to the stigma of the same flower or different flower of the same plant whereas cross pollination occurs when pollen grains are transferred from the anther of a flower to the stigma of another flower on a different plant but of the same species.
Explain how the structure of organelles help the cell function. Provide two specific examples of
organelles to support your explanation.
Answer:
Organelles help the cell function by completing the tasks necessary for the cell to be alive.
Explanation:
Two examples are:
- ribosomes: synthesize proteins using mRNA to make amino acids
- nucleus: contains the cell's genetic material
Explain how x-rays cause damage to human cells.
When the human body (its cells) is exposed to radiation (X rays and gamma rays), electrons are emitted from atoms and molecules. ... ・These radicals react immediately with surrounding atoms, causing abnormal chemical reactions (or, minor damage to localized areas of cells).