A nonsense mutation is least likely to affect the corresponding protein.
What is a mutation?A mutation is a sudden, unexpected transformation in genetic information that occurs naturally over time or is triggered by environmental factors. As a result, mutations can have a variety of impacts on proteins. A mutation in DNA may have no effect, a moderate effect, or a severe effect on the protein it encodes. Mutations may be classified as silent mutations, missense mutations, nonsense mutations, frameshift mutations, and other types of mutations.
They may arise spontaneously as a result of replication errors or as a result of exposure to various DNA-damaging agents.Mutations that are least likely to impact the corresponding protein: The following are the types of mutations that are least likely to impact the corresponding protein:
nonsense mutationMissense mutationSilent mutationTherefore, the correct answer is a nonsense mutation. A nonsense mutation is a type of mutation that transforms an amino acid coding codon into a stop codon. As a result, a short, incomplete protein is produced. Because of the generation of a premature stop codon, this protein lacks vital functional domains. Nonsense mutations are much less likely to have an effect on the corresponding protein than other types of mutations.
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if the allele frequency of p is 0.6, what is the allele frequency of q assuming that the population is at hardy-weinberg equilibrium?
In a population in Hardy-Weinberg equilibrium, if the frequency of the p allele is 0.6, the frequency of the q allele is 0.4.
What is the frequency of the q allele assuming a population in Hardy-Weinberg equilibrium?In a population in Hardy-Weinberg equilibrium, the frequency of each allele can be calculated using the formula:
p² + 2pq + q² = 1
where: p² is the frequency of the homozygous dominant genotype, 2pq is the frequency of the heterozygous genotype q² is the frequency of the homozygous recessive genotype.
Since there are only two alleles in a population, p and q, the sum of the frequencies of p and q must equal 1. Therefore, we can simplify the equation: p + q = 1
Given that the frequency of the p allele is 0.6, we can substitute this value for p:
p + q = 1
0.6 + q = 1
q = 1 - 0.6
q = 0.4
Therefore, the frequency of the q allele in a population in Hardy-Weinberg equilibrium when the frequency of the p allele is 0.6 is 0.4.
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What the definition of genetic mutations?
Genetic mutations refer to changes or alterations in the DNA sequence that can occur naturally or as a result of external factors such as exposure to radiation, chemicals, or certain viruses.
Mutations can occur at the level of a single nucleotide or can involve larger segments of DNA.A genetic mutation may change an organism's behavior, susceptibility to disease, and physical characteristics, among other traits. Some mutations may be neutral or even advantageous, giving an advantage in specific locations or conditions. Other mutations are detrimental and can result in genetic illnesses or raise the risk of getting particular diseases.
Genes, regulatory sections, and non-coding portions of DNA sequences can all experience mutations. The location and kind of the mutation will determine whether it has an impact on chromosome structure, protein function, or gene expression.
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what is the term for the part of a dna strand that produces a protein that causes a stem cell to differentiate?
The term for the part of a DNA strand that produces a protein that causes a stem cell to differentiate is differentiation-inducing factor or differentiation signal.
What is differentiation-inducing factor?This protein is a transcription factor that regulates the expression of genes involved in cell differentiation, leading to development of specialized cell types.
Cell fate means that stem cell makes a decision to differentiate into mature cell type. Signals from environment—chemicals, extracellular proteins/hormones/factors, neighboring cells, physical environment—converge on the cell, activating a signaling cascade that leads to gene expression.
Cell that differentiates into all cell types of adult organism is known as pluripotent and such cells are called meristematic cells in higher plants and embryonic stem cells in animals.
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indentify if the following is: an independant clause, a dependent clause, or a phrase. smashing into the care
""Smashing into the car" is a phrase. It does not express a complete thought and cannot stand alone as a sentence.
What is a sentence ?.It typically includes a subject, which is the person, place, thing, or idea the sentence is about, and a predicate, which is the action or description that is being performed or stated about the subject. A sentence can be simple, containing just one independent clause, or it can be complex, containing multiple clauses joined together. Sentences can be used to make statements, ask questions, give commands, or express strong emotions.
What is a Smashing ?As a verb, "smashing" means to break or crush something violently into small pieces.
As an adjective, "smashing" means excellent, impressive, or attractive.
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A mutation that actually interferes with the function of the wild-type allele by specifying polypeptides that inhibit, antagonize, or limit the activity of the wild-type polypeptide is known as:
A mutation that actually interferes with the function of the wild-type allele by specifying polypeptides that inhibit, antagonize, or limit the activity of the wild-type polypeptide is known as Dominant negative mutation.
Dominant negative mutation refers to a genetic alteration that can disrupt or prevent the action of a typical (wild-type) protein. A protein's structural or functional properties may be affected by the mutation, reducing the effectiveness of the gene. This mutation's influence can be demonstrated in a heterozygous organism, where the presence of a wild-type allele may be suppressed by the mutated allele. The allele's adverse effect is so strong that it will overcome the wild-type phenotype, making the recessive allele's influence irrelevant. Their polypeptides function by inhibiting, antagonizing, or limiting the action of a typical (wild-type) polypeptide.
However, A dominant negative mutation interferes with a protein's activity, frequently causing it to lose its ability to interact with other proteins or DNA. This results in the formation of dysfunctional protein complexes that can result in a variety of illnesses.
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What type of hybrid zone involves a weakening of reproductive barriers?
Answer:Fusion
Explanation:
BZ 2008 jun
3
(a) The dig show a section dugh a heally hag anda secti
drough a discased long
capillaries
A
red Mood
cells
(1)
Healdry long
Name the structures labelled A and B
deva to the
Diseased long
[2)
A
B
State the name of the disease shown in the diagram and explain your reasons for this
choice
[3]
Name of disease
Explanation
(i) Explain the effects that the disease will have on the process of gaseous exchange in
the diseased lung.
[2]
Answer:
(a) The structures labelled A and B in the diagram are:
A - Capillaries
B - Alveoli
(1) Healthy lung
(2) Diseased lung
The disease shown in the diagram is emphysema.
(3) Explanation:
Emphysema is a respiratory disease that affects the alveoli, the tiny air sacs in the lungs responsible for the exchange of oxygen and carbon dioxide between the lungs and the bloodstream. In emphysema, the walls of the alveoli are damaged, leading to the formation of larger, less efficient air spaces. This causes a reduction in the surface area available for gas exchange, leading to impaired breathing and reduced oxygen supply to the body.
As the walls of the alveoli break down, the lungs lose their elasticity and become less able to expel air. This results in a buildup of air in the lungs, which can cause shortness of breath and other respiratory symptoms. In addition, the capillaries around the alveoli may become damaged, leading to reduced blood flow to the lungs and further reducing the efficiency of gas exchange.
Overall, emphysema reduces the efficiency of the process of gaseous exchange in the lungs by reducing the surface area available for gas exchange and impairing the ability of the lungs to expel air. This can lead to reduced oxygen supply to the body and other respiratory symptoms.
(please mark my answer as brainliest)
How do i graph this as a natural selection graph????
Answer:
During the cell cycle, a cell goes through interphase, mitosis, and cytokinesis. Which model best shows how a cell changes between the beginning of interphase and the end of interphase?
A, B, C, or D
Help me please
Answer:
i believe it is d (as a highschool student in biology at the moment i could be wrong but from looking it up and from what i already know thar seems to be correct)
Explanation: in interphase the cell grows due to the replication of dna and the preparation of mitosis
which of the following statements regarding metabolism is false? heat may be released in both anabolic and catabolic reactions. atp is formed in catabolic reactions. adp is formed in anabolic reactions. anabolic reactions are degradative.
The false statement regarding metabolism is "anabolic reactions are degradative." Therefore, the correct answer is the last option.
Metabolism is a collection of chemical reactions that takes place in living cells to sustain life by transforming food into energy and extracting energy from it for cellular activities. Metabolism is the mechanism by which all living organisms produce energy and utilize that energy to carry out their biological activities.
The false statement regarding metabolism is "anabolic reactions are degradative."
Anabolic reactions are responsible for synthesizing complex organic molecules from simpler molecules by consuming energy. The human body, for example, consumes food to produce energy and consumes that energy to develop and maintain bodily structures. Anabolic reactions are involved in processes such as protein synthesis, photosynthesis, and DNA replication. Catabolic reactions, on the other hand, are responsible for breaking down complex organic molecules into simpler molecules to release energy.
When our bodies digest food, for example, energy is released by breaking down the food's molecules into simpler molecules. ATP is produced in catabolic reactions, but ADP is produced in anabolic reactions. Heat can be released in both anabolic and catabolic reactions.
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Which 2 organisms in the picture are most closely related? How do you know?
Answer:
I would say a whale and a bat
Explanation:
because they both have curved wing/flipper
Which of the following reactions produces the majority of the CO2 released by the complete oxidation of glucose?
The majority of the CO2 released by the complete oxidation of glucose is produced by the Krebs cycle or citric acid cycle. the correct option is a.
During the Krebs cycle, acetyl CoA (produced from pyruvate oxidation) reacts with oxaloacetate to form citrate. Citrate then undergoes a series of reactions, ultimately regenerating oxaloacetate and producing CO2 as a byproduct. The complete oxidation of glucose occurs in three main stages: glycolysis, the Krebs cycle, and the electron transport chain. Glycolysis produces a net yield of 2 ATP, 2 NADH, and 2 pyruvate molecules. The pyruvate then undergoes a series of reactions that result in the formation of acetyl CoA, which enters the Krebs cycle.
The Krebs cycle produces 2 ATP, 6 NADH, 2 FADH2, and 4 CO2 molecules. Finally, the electron transport chain uses the NADH and FADH2 produced in the earlier stages to produce a proton gradient that drives the synthesis of ATP through chemiosmosis.
The oxidation of pyruvate to acetyl-CoA during the Krebs cycle produces CO2 as a product. Therefore, the correct option is a. the Krebs cycle.
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Which of the following processes is (are) required for the complete oxidation of glucose? a. The Krebs cycle b. Glycolysis c. Pyruvate oxidation d. All of the choices are correct.
17. Which Of These Partial Proteins Was Most Likely Assembled By A Thermophile? A. Gly-Gly-Pro-Arg-Arg-Cys-Cys-Gly B. Cys-Met-Met-Arg-Asp-Asp-Asp-Pro C. Pro-Pro-Arg-His-Pro-Pro-Pro-Gly D. Met-Gly-Cys-Pro-Arg-Arg-Pro-Arg
Partial Proteins Was Most Likely Assembled By A Thermophile is Cys-Met-Met-Arg-Asp-Asp-Asp-Pro. The correct answer is B.
This partial protein was most likely assembled by a thermophile because it contains amino acids that have the ability to resist denaturing at high temperatures. At high temperatures, proteins are more stable and have increased thermodynamic stability.
For example, Taq polymerase, which is utilized in the polymerase chain reaction (PCR), was isolated from the thermophilic bacterium Thermus aquaticus.
The amino acid sequence of a protein can be used to infer its function, conformation, and origin. The amino acid sequence determines the protein's 3D structure, which is critical for its function. The protein's origin, on the other hand, is determined by the organism that produced it.
Therefore, the correct option is B. i.e. Cys-Met-Met-Arg-Asp-Asp-Asp-Pro .
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In clonal selection of B cells, which substance is responsible for determining which cells will eventually become cloned?a. antigenb. interferonc. antibodyd. complement
In clonal selection of B cells, antigen is the substance responsible for determining which cells will eventually become cloned. Therefore the correct option is option A.
Clonal selection is a mechanism by which the immune system identifies and destroys pathogens such as bacteria, viruses, and fungi that cause diseases. It occurs when a specific antigen binds to and activates only those T lymphocytes that are specific for it.
This selective activation results in the proliferation of the activated T lymphocytes, resulting in the production of a large population of antigen-specific T lymphocytes. Antigens are foreign molecules that elicit an immune response when they enter the body.
They are typically proteins or carbohydrates that are present on the surface of bacteria, viruses, and fungi. When an antigen enters the body, it is picked up by specialized immune cells called dendritic cells.
In conclusion, the antigen is the substance responsible for determining which cells will eventually become cloned in clonal selection of B cells.
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if there is a problem with the citric acid cycle (krebs cycle), which biophysical response would occur?
If there is a problem with the citric acid cycle (Krebs cycle), there will be a decreased production of ATP. This is because the citric acid cycle, also known as the Krebs cycle, is the primary source of ATP production in aerobic respiration. The Krebs cycle takes place in the mitochondria of the cell and produces ATP, carbon dioxide, and water.
The citric acid cycle, also known as the Krebs cycle, is a metabolic pathway that occurs in the mitochondria of eukaryotic cells. It is the primary source of ATP production in aerobic respiration. The cycle begins with the oxidation of acetyl-CoA and ends with the production of ATP, carbon dioxide, and water.
Each turn of the Krebs cycle generates one molecule of ATP, three molecules of NADH, and one molecule of FADH2. These molecules are then used in the electron transport chain to produce additional ATP. If there is a problem with the citric acid cycle, there will be a decreased production of ATP, which will lead to a decrease in energy production in the cell.
This can have a range of biophysical responses, depending on the type of cell and the severity of the problem. Some possible responses might include a decrease in cell growth and division, a decrease in protein synthesis, or an increase in oxidative stress.
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Please help. In the male, each of four different nuclei created through meiosis will become a sperm true or false
Answer:
False
Explanation:
Because each nuclei has a different meiosis
Gregor Mendel described several traits in pea plants in which a dominant trait masked a recessive trait. Two such traits were plant height (T = tall, t = short) and seed shape (R = round, r = wrinkled). Match each genotype below with its expected phenotype.
tall and round
The genotypes match with phenotypes as follows in the plant pea experiments:
Short and Wrinkled = ttrrTall and Round = TTRR, TtRr, TTRrTall and wrinkled = TTrr; Ttrr.Short and round = none Mendel's Experiments in pea plantsGenotype refers to the genetic makeup of an organism, while phenotype refers to the outward expression of an organism's genetic makeup. Dominant refers to an allele that masks the effect of another allele, while recessive refers to an allele that is only expressed in the homozygous state (when two copies are present). Therefore, in the given question, T and R are dominant alleles while t and r are recessive alleles.
Given the Genotype above, the expected Phenotype is as follows:
Short and Wrinkled = ttrr
Tall and Round = TTRR, TtRr, TTRr
Tall and wrinkled = TTrr; Ttrr
Short and round = none
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a population of arctic hares burrows into the snow for shelter. it is found that the hares on the smaller side are able to burrow between rocks, as well, providing extra protection from predators. over time, the hare population becomes smaller in size, shifting the normal distribution curve for hare size. selection type: 8. limpets are a snail species that can often be found on the seashore. they come in 3 variations: dark, light and intermediate. the dark and light colors are easier for sea gulls to spot, and therefore they are more commonly hunted. selection type: 9. if there was a great flood and lemurs that had longer tails were better able to climb and live in trees, while the other phenotypes were not able to survive as well, which type of selection would this be? selection type: 10. in a population of spiders that were hunted by sparrows, the large spiders were easy to spot, but moved very quickly; the small spiders were not very easy to spot; the average size spiders were easier to spot than the small ones, but moved more slowly than the large ones, thus making them the most hunted, which type of selection would this be? selection type: 11. in a wild leopard population, cubs that are born with low birth weights lose heat more quickly and tend to die, while babies that are too large are not able to deliver through the pelvic bones of the mother leopard. this leads to a high mortality rate for cubs that are born too
Directional selection is the term used to explain the type of selection illustrated in the arctic hare scenario. Due to their ability to burrow into tighter areas, the smaller hares have an edge.
What is the purpose of camouflage for the Arctic hare?They have a bright white coat that serves as good concealment in the region of ice and snow throughout the winter. The hare's colours change to a blue-gray hue in the spring to resemble nearby rocks and flora.
What behavioural adaptations do Arctic hares have?Although Arctic hares are solitary animals, during the colder months they wander and gather in large groups with up to 100 members to avoid predators and stay warm. They gather behind a tree for comfort during snowstorms.
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The data show the age and location of rocks on the sea floor.
Distance from mid ocean ridge, 10 kilometers, age, 300,000 years. Distance, 25 kilometers, age, 1 million. Distance, 40 kilometers, age 1 million 625,000 years.
Describe the relationship between the age of the rocks and their distance from the mid-ocean ridge.
Determine whether the rate of plate movement is a slow or fast process.
Based on the given data, there is a clear relationship between the age of the rocks and their distance from the mid-ocean ridge.
What is the relationship between the age of rocks and their distance and is the rate of movement slow or fast?The rocks closer to the mid-ocean ridge are younger than the rocks farther away from it. Specifically, the rocks that are 10 kilometers from the ridge are 300,000 years old, while the rocks that are 25 kilometers away are 1 million years old, and the rocks that are 40 kilometers away are 1,625,000 years old.
This pattern of younger rocks closer to the mid-ocean ridge and older rocks farther away is consistent with the theory of plate tectonics.
The rate of plate movement can be estimated by dividing the distance between two points on the sea floor by the difference in their ages. Based on the given data, the rate of plate movement between the 10-kilometer and 25-kilometer marks is (25 km - 10 km) / (1 million years - 300,000 years) = 15 km / 700,000 years ≈ 0.021 km/year. Similarly, the rate of plate movement between the 25-kilometer and 40-kilometer marks is (40 km - 25 km) / (1,625,000 years - 1 million years) = 15 km / 625,000 years ≈ 0.024 km/year.
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Once it enters the cytoplasm of a host cell and sheds its capsid, replication of HIV begins when _____ _____ is used to synthesize a double strand of DNA from the viral RNA.
Once it enters the cytoplasm of a host cell and sheds its capsid, replication of HIV begins when reverse transcriptase is used to synthesize a double strand of DNA from the viral RNA.
Once it enters the cytoplasm of a host cell and sheds its capsid, replication of HIV begins when reverse transcriptase is used to synthesize a double strand of DNA from the viral RNA.
What is HIV?HIV stands for Human Immunodeficiency Virus, a virus that attacks and weakens the immune system of humans. HIV replicates in the host cell cytoplasm after shedding its capsid, and it is called replication. When the reverse transcriptase enzyme is used to create a double-stranded DNA from the viral RNA, replication begins. HIV attacks the T-helper cells in the immune system, which are in charge of defending the body against foreign invaders. HIV gets into the bloodstream and travels to the CD4 T-helper cells after being contracted. The virus begins to reproduce after it has entered the host cell's cytoplasm. The viral RNA then acts as a template for reverse transcriptase, an enzyme that catalyzes the creation of a DNA copy of the RNA. The RNA template is destroyed and a second DNA strand is created by the same enzyme, reverse transcriptase. This second DNA strand is complementary to the first and forms a double-stranded DNA molecule.
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An inbred strain of plants has a mean height of 24 cm. A second strain of the same species from a different country also has a mean height of 24 cm. The F1 plants from a cross between these two strains are also 24 cm high. However, the F2 generation shows a wide range of heights; the majority are like the P1 and F1 plants, but approximately 4 of 1000 are only 12 cm high, and 4 of 1000 are 36 cm high.
(a) What mode of inheritance is occurring here?
(b) How many gene pairs are involved?
(c) How much does each gene contribute to the plant height?
(d) Indicate one possible set of genotypes of the P1 and F1 plants that could explain their heights.
(e) Indicate one possible set of genotypes to account for F2 plants that are 18 cm or 33 cm high
(a) The inheritance pattern that is occurring here is most likely incomplete dominance or codominance, where the phenotype of the heterozygous F1 plants is intermediate between the two homozygous parental strains.
(b) Since there are three distinct phenotypic classes (short, intermediate, and tall) in the F2 generation, it is likely that two gene pairs are involved in the control of plant height.
(c) Each gene likely contributes equally to the plant height, with the intermediate phenotype of the F1 generation resulting from a heterozygous genotype at both gene loci.
(d) One possible set of genotypes for the P1 and F1 plants that could explain their heights is:
P1: Homozygous tall (TT) and homozygous tall (TT)
F1: Heterozygous (Tt) and heterozygous (Tt)
(e) One possible set of genotypes to account for F2 plants that are 18 cm or 33 cm high could be:
18 cm: Homozygous short (tt) at both gene loci
33 cm: Homozygous tall (TT) at both gene loci
It is important to note that these are only hypothetical sets of genotypes, and other combinations of alleles at these gene loci could also result in the observed phenotypic ratios in the F2 generation.
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Regardless of the electron or hydrogen acceptor used, one of the products of fermentation is always: NAD+Acetyle-CoAADPATP
This statement is not entirely accurate. While it is true that NAD+ is always produced during fermentation, the other products listed - acetyl-CoA, DPATP, and hydrogen acceptors - may or may not be produced.
Fermentation is a metabolic process that occurs in the absence of oxygen, and allows for the continued production of ATP by glycolysis. During fermentation, the electrons from NADH produced during glycolysis are transferred to an electron or hydrogen acceptor molecule, allowing NAD+ to be regenerated and reused in glycolysis. This process is necessary to maintain a steady supply of ATP when oxygen is not available. Different types of fermentation use different electron or hydrogen acceptors, and produce different end products. For example, lactic acid fermentation produces lactate as the end product, while ethanol fermentation produces ethanol and carbon dioxide as the end products. Some types of fermentation also produce small amounts of ATP directly, while others rely solely on the ATP produced by glycolysis.
So while NAD+ is always produced during fermentation, the other products listed can vary depending on the specific type of fermentation.
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The complete question is:
True, or False
Regardless of the electron or hydrogen acceptor used, one of the products of fermentation is always: NAD + Acetyle-CoA + DPATP.
The major mechanisms that regulate the body balances of water and many of the inorganic ions that determine the properties of the extracellular fluid are the reflexes that alter excretion via the _____
The major mechanisms that regulate the body balances of water and many of the inorganic ions alter excretion via the kidneys.
What are reflexes?A reflex is an automatic and immediate response to a stimulus by a muscle or gland. A reflex occurs without conscious thought or effort, allowing the body to respond swiftly to a stimulus. The reflex arc is the nerve pathway that mediates a reflex action. Because of their quickness, reflexes are essential survival mechanisms that protect the body from harm, allowing it to react quickly and effectively when danger arises.
The reflexes that alter excretion via the kidneys are the major mechanisms that regulate the body balances of water and many of the inorganic ions that determine the properties of the extracellular fluid.
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a single nucleotide deletion during dna replication
An error during DNA replication known as a deletion mutation eliminates nucleotides from the genome. A deletion mutation can eliminate a single nucleotide or whole nucleotide sequences.
By eliminating at least one nucleotide from a gene, a deletion modifies the DNA sequence. Larger deletions can eliminate a whole gene or a number of nearby genes, while smaller deletions just delete one or a few nucleotides from a gene. The function of the affected protein or proteins may change as a result of the deleted DNA.
When a portion of a DNA molecule is not replicated during DNA synthesis, a deletion mutation happens. An uncopied region can range in size from a single nucleotide to an entire chromosome. the DNA's loss throughout replication.
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Correct Question:
Explain about a single nucleotide deletion during dna replication.
Do you think it is appropriate that the pituitary is called the master gland? Justify your answer
Answer:
because it produces hormones that control glands and many body functions including growth
Explanation:
hope this helps
a distinct form or race of a plant or animal species occupying a particular habitat are called?
A distinct form or race of a plant or animal species occupying a particular habitat is called a subspecies.
Subspecies are defined as geographically or ecologically distinct populations within a species that have evolved morphological or physiological differences from other populations of the same species.
Subspecies are often identified based on differences in physical appearance, such as size, coloration, or markings, as well as variations in behavior or genetic makeup. They can arise through a variety of processes, including geographic isolation, adaptation to local environmental conditions, or genetic drift.
Subspecies can play an important role in conservation and management efforts, as they may have unique adaptations and ecological requirements that differ from other populations of the same species. Therefore, understanding the distribution and characteristics of subspecies can be important for making informed decisions about their conservation status and management needs.
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why does the cell membrane being thrown up in many folds along one side?
You need to determine whether an unknown plant is an angiosperm or a gymnosperm. Which of the following features would be the best to examine? Roots Leaves Seeds Stems 3-In a fern life cycle, which of the following structures is not present in the sporophyte generation? Indusium Prothallus Crozier Annulus 6-A researcher who studies the internal cell structure of ancient plants would gather the most information from which type of fossil? Petrifaction Compression Mold Cast 7- A seed is more likely than a spore to survive a long drought because it has which structure? A seed coat A cuticle A hypodermis A strobilus 9-When you eat a peach, what are you eating? Gametophytic tissue composed of haploid cells Sporophytic tissue composed of diploid cells Gametophytic tissue composed of diploid cells Sporophytic tissue composed of haploid cells
The correct options are (1) seeds, (2) prothallus, (3) petrifaction fossil, (4) seed coat, and (5) sporophytic tissue composed of diploid cells.
The best feature to examine to determine an unknown plant as an angiosperm or a gymnosperm is seeds.
In the life cycle of a fern, the prothallus structure is absent in the sporophyte generation.
A researcher who studies the internal cell structure of ancient plants would gather most information from the petrifaction fossil.
A seed is more likely than a spore to survive a long drought because it has a seed coat.
The seed coat is a protective layer that prevents the desiccation of the embryo and protects it from harmful factors.
When we eat a peach, it is the sporophytic tissue composed of diploid cells that we are eating.
The flesh of a peach is the mature ovary of the flower and it develops from the diploid tissue of the sporophyte generation.
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What does collagen do in the extracellular matrix?
Collagen is the abundant protein that found in the body. Its fiber-like structure is used to make the connective tissue. This type of tissue connects other tissues and is also a major component of bone, skin, muscles, tendons and cartilage.
What does collagen do in extracellular matrix?Collagen is protein molecules that made up of amino acids. Collagens constitutes the main structural element of the ECM. It provides tensile strength, regulate cell adhesion, support chemotaxis and migration, and also direct tissue development
The extracellular matrix is rich in collagen and elastic fibers and provides tissues with tensile strength to resist any deformation. Elastin provides tissues with elasticity to withstand the repetitive stress.
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Some invertebrates combine morphological simplicity with features of great structural or biochemical complexity. Select all correct examples of this statement. a. Trematodes. b. Cnidarians
c. Porifera
d. a dan b are true
Some invertebrates combine morphological simplicity with features of great structural or biochemical complexity" are b. Cnidarians and d. a and b.
What is Morphological simplicity?Morphological simplicity and biochemical complexity coexist in some invertebrates. Among the invertebrates that show a combination of morphological simplicity and great structural or biochemical complexity are cnidarians, particularly corals, and trematodes. Corals, for example, have a simple body structure with no organs, but they are biochemically complex.
Corals have fluorescent pigments that protect them from the sun and photosynthetic algae that provide them with nutrients. Trematodes are parasitic worms that have complex biochemical mechanisms for modifying their host's immune system and secreting toxins to protect themselves from host responses.
Cnidarians and Trematodes are two examples of invertebrates that combine morphological simplicity with features of great structural or biochemical complexity. Thus, the correct options are b. Cnidarians and d. a and b.
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