the _____ hypothesis states that long term environmental unpredictability led to morphological and behavioral adaptations. group of answer choices a. savannah b. turnover c. pulse variability d. selection aridity

Answer:

I would say a whale and a bat

Explanation:

because they both have curved wing/flipper

Glycolysis is the first stage of aerobic respiration that it includes oxaloacetate as a reactant.

This stage of glycolysis begins with the breakdown of glucose in the cytoplasm of the cell into two molecules of pyruvate during which these two molecules of ATP (adenosine triphosphate) are consumed and two molecules of NADH (reduced nicotinamide adenine dinucleotide) are produced. Oxaloacetate is also produced in this stage when the molecule of glucose is broken down into two molecules of pyruvate. It is then used in the next stage, formation of acetyl coenzyme A (acetyl CoA) and then combined with an acetyl group (which is derived from the breakdown of pyruvate) to form citrate, which is then converted to isocitrate which is called the citric acid cycle.

To learn more about oxaloacetate click here https://brainly.com/question/14245409

#SPJ4

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.

To know more about Fermentation

brainly.com/question/29760642

#SPJ4

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 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.

To know more about Glucose please visit:

https://brainly.com/question/30971587

#SPJ11

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.

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.

Learn more about metabolism at https://brainly.com/question/14422941

#SPJ11

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.

To know more about HIV, click on the below link:

https://brainly.com/question/29602728

#SPJ11

Some invertebrates combine morphological simplicity with features of great structural or biochemical complexity" are b. Cnidarians and d. a and b.

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.

To know more about biochemical complexity:

https://brainly.com/question/29562878

#SPJ11

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 .

To know more about Thermophile please visit :

https://brainly.com/question/7220757

#SPJ11

Answer:Fusion

Explanation:

""Smashing into the car" is a phrase. It does not express a complete thought and cannot stand alone as 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.

As a verb, "smashing" means to break or crush something violently into small pieces.

As an adjective, "smashing" means excellent, impressive, or attractive.

To know more about sentence visit :

https://brainly.com/question/18728726

#SPJ1

The major mechanisms that regulate the body balances of water and many of the inorganic ions alter excretion via the kidneys.

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.

Learn more about Reflexes here:

https://brainly.com/question/29727145

#SPJ11

Answer:

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.

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.

To know more about stem cells, refer

https://brainly.com/question/2304432

#SPJ1

A nonsense mutation is least likely to affect the corresponding protein.

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:

Therefore, 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.

Learn more about mutations: https://brainly.com/question/26928446

#SPJ11

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.

Learn more about Subspecies  here:

https://brainly.com/question/21435073

#SPJ4

Answer:

False

Explanation:

Because each nuclei has a different meiosis

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)

(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.

To know more about Phenotype, visit: brainly.com/question/20730322

#SPJ4

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.

Learn more about fern: https://brainly.com/question/2919630

#SPJ11

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.

To know more about Dominant negative mutation please visit :

https://brainly.com/question/30430017

#SPJ11

Based on the given data, there is a clear relationship between the age of the rocks and their distance from the mid-ocean ridge.

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.

To know more about rock movements, visit:

https://brainly.com/question/7831242

#SPJ1

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

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.

For such more question on antigen:

https://brainly.com/question/7597406

#SPJ11

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.

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.

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.

To know more about Directional selection visit:-

https://brainly.com/question/12226774

#SPJ1

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.

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.

Learn more about Hardy-Weinberg equilibrium here:

https://brainly.com/question/30972392

#SPJ11

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.

To know more about mutations click here

brainly.com/question/14438201

#SPJ4

Answer:

because it produces hormones that control glands and many body functions including growth

Explanation:

hope this helps

Answer:

The matched phenotypes and genotypes are given below:

1. AaBbcc- Albino

2. AAbbCc- Agouti brown

3. AaBBCC- Agouti black

4. aaBbCc- Solid color, black.

5. Aabbcc- Albino

6. AABBcc- Albino

Explanation

Given the following phenotypes and genotypes for an organism, match the phenotypes on the labels at left to the genotypes listed below:

Labels: Albino, Agouti brown, Agouti black, Solid color black

Genotypes: AaBbcc, AAbbCc, AaBBCC, aaBbCc, Aabbcc, AABBcc, Solution:

1. AaBbcc- Albino

Both "Aa" and "Bb" are heterozygous dominant, whereas "cc" is homozygous recessive. In this case, Albino is expressed.

2. AAbbCc- Agouti brown

The "A" and "B" alleles are dominant, while the "Cc" allele is recessive. In this case, agouti brown is expressed.

3. AaBBCC- Agouti black

Both "A" and "B" alleles are dominant, while "Cc" is recessive. In this case, Agouti black is expressed.

4. aaBbCc- Solid color, black.

"aa" is homozygous recessive, while "Bb" is heterozygous dominant, and "cc" is homozygous recessive. In this case, solid color, black is expressed.

5. Aabbcc- Albino

Both "a" and "b" alleles are homozygous recessive, while "cc" is homozygous recessive. In this case, Albino is expressed.

6. AABBcc- Albino

Both "A" and "B" alleles are homozygous dominant, while "cc" is homozygous recessive. In this case, Albino is expressed.

"phenotype", https://brainly.com/question/30356302

#SPJ11

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.

Learn more about replication Visit: brainly.com/question/21265857

#SPJ4

Correct Question:

Explain about a single nucleotide deletion during dna replication.