A ____ is a set of statements about the mechanisms underlying a behavior. postulate

Answer: answers are in the explanation

Explanation:

Golgi body

1. To package and transport glycoprotein

2. To secrete synthesised proteins

3. To secrete lysosomes

Endoplasmic reticulum

-Rough endoplasmic reticulum

1. To transport synthesised proteins

-Smooth endoplasmic reticulum

1. To transport lipids

Mitochondrion

1. To increase the surface area for respiration

2. To provide energy for the process of respiration

Ribosomes

1. To serve as site for protein synthesis

The translation is directly facilitated by mRNA, tRNA, and rRNA. A specific DNA sequence termed a gene is used as a template during gene transcription to produce a messenger RNA (mRNA), so 1, 2, and 3 are directly involved.

The ribosomes are the next location this mRNA visits before being employed to translate it into a protein.

A ribonucleoprotein complex called the ribosome is made up of proteins and ribosomal RNA (rRNA) sequences.

The linear order of the amino acids that will be added to the protein is indicated by the triplets of nucleotides, or "codons," in the mRNA.

Therefore, the process of translating mRNA into the chain of amino acids that makes up the produced protein occurs in ribosomes in the cytoplasm of the cell.

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The cranial nerves are located within the skull, on the underside of the brain is True

Brain and spinal cord are components of the central nervous system (CNS). In the spinal column and the skull, respectively, they are discovered to be housed.

One or more of the cranial nerves are connected to a group of neurons (grey matter) in the brain stem called a cranial nerve nucleus. These nuclei serve as the earliest sites of synapse development for axons transporting information to and from the cranial nerves.

The nerves that emanate from the spinal cord and connect to every area of the body make up the peripheral nervous system.

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The diagram represents human chromosome 7, which is divided into numerous genes that are grouped into lightly shaded bands. so,

Chromosomes contain multiple genes that collectively code for the production of several different types of proteins.

Each gene on a chromosome contains the genetic information necessary for the production of a specific protein. Since human chromosome 7 is divided into numerous genes that are grouped into lightly shaded bands, it indicates that the chromosome contains multiple genes that collectively code for the production of several different types of proteins. Therefore, the correct inference is that chromosomes contain multiple genes that collectively code for the production of several different types of proteins.

A gene is a segment of DNA that contains the instructions for the synthesis of a specific protein or functional RNA molecule. A chromosome, on the other hand, is a structure made up of DNA and proteins that carries genetic information in the form of genes.

Each chromosome in an organism's genome contains many genes, and the exact number of genes can vary depending on the organism. In humans, for example, each of the 23 pairs of chromosomes contains hundreds to thousands of genes.

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Answer:

1:2:1

Explanation:

Boom Logic....

Explanation:

the genotype ratio of the F2 plants is 1:2:1

An element's radioactive decay graph can be categorized as an exponential graph, more particularly, the decay of an element through exponential processes. As x increases exponentially in these graphs, y declines and gets closer to zero.

N\s= N ( 1 /2 ) n

n = t / T.

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Oil spill has detrimental effects on the environment.

During transportation of oil, the leakage of oil that occurs in the water bodies, specifically in the oceans and seas is referred to as oil spill.

This spilled oil floats on the surface of water. This oil has effects on aquatic animals as well as the birds that hover around the water bodies. For instance, if the feathers of the seabirds get oiled, the birds can die of hypothermia. Many fishes and planktons die because of the oil spilled.

The oil droplets present on the surface are degraded by the process of photooxidation that happens due to exposure to light and oxygen. This also results in the formation of free radicals that are harmful to the water body as well as to the organisms present in water.

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The statement "they are not regulated by contact inhibition" best describes cancer cells. Thus, the correct option is D.

A cancerous cell may be defined as a cell that stimulated continuous growth, inhibition of apoptosis, perform metastasis, etc.

Contact inhibition is performed by the noncancerous cells to cease proliferation and growth when they contact with each other. This property is lost when any noncancerous cell is transformed into a cancerous cell.

Thus, the correct option for this question is D.

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Answer:

True

Explanation:

It is typically a final step to remove organisms from the treated water before the effluent is released back into the water system. Disinfection prevents the spread of waterborne diseases by reducing microbes and bacterial numbers to a regulated level.

Disinfectants are used to rapidly kill bacteria. They kill off the bacteria by causing the proteins to become damaged and the outer layers of the bacteria cell to rupture. The DNA material subsequently leaks out.

Disinfection is the process designed to kill or inactivate most microorganisms in wastewater, including essentially all pathogenic organisms. Contrast this to sterilization, which is the removal and destruction of all living microorganisms, including pathogenic and saprophytic bacteria, vegetative forms and spores.

Answer:

producers make their own energy

Answer:c

Explanation:

Answer:

The picture is upside down

Explanation:

Answer:

D

Explanation:

the mRNA brings information to the nucleus for the tRNA to use

Answer:

Sequence C‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎

The experimenters found that for the two groups of rats, the rate of bar pressing reached extinction more quickly for the rats whose paws were slapped than for the rats whose paws were not.

Correct option is B.

The rats whose paws were slapped experienced a temporary slowing of bar pressing behavior during the punishment period, but extinction was eventually reached. In contrast, rats whose paws were not slapped had a more gradual decrease in behavior until extinction was eventually reached.

This finding suggests that punishing the rats affected the rate of extinction, however, the rate was not fast enough to prevent extinction in either group. Overall, this experiment indicates that punishment can affect the rate of extinction, though not in a way that completely inhibits extinction from occurring.

Correct option is B.

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The statements which accurately describe slow-flowing areas of streams and rivers include:

This is referred to a body of water which flows in a continuous manner within the banks and beds.

Slow-flowing areas will support plant life due to reduced erosion and uprooting and also has warm water due to increased light concentration. This is therefore why the options were chosen as the most appropriate choice.

The options include the following:

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Answer:

X chromosomes.........

Answer:X chromosomes

Explanation:

Turner syndrome, a condition that affects only females, results when one of the X chromosomes  is missing or partially missing. Turner syndrome can cause a variety of medical and developmental problems, including short height, failure of the ovaries to develop, and heart defects.

Answer:

I think it is b

Explanation:

please tell me if this is wrong

Answer:

not 100 but I'd say D I think I'm like 70%

When a purple flower with a genotype PP is crossed with a white flower that has a genotype of pp. The phenotype of the offspring would be Purple (Pp).

Genotype may be defined as the ultimate combination of the alleles of those genes which are selected for specific studies.

The phenotype of the offspring would be Purple (Pp). This is because the allele of the purple phenotype is dominant over the allele of the white phenotype. That is P > p.

The Punnett Square may be represented below:

Therefore, it is well described above.

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Answer:

D

Explanation:

RNA is needed for DNA Replication

The role of DNA polymerase in DNA replication includes synthesizing a complementary daughter strand, proofreading the new daughter strands for correct base order, and synthesizing a daughter strand identical to the template strand.

It does not participate in the separation of the two strands of nucleotides.

DNA polymerase is responsible for synthesizing a daughter strand that is complementary to the template strand during DNA replication. It uses the existing template strand as a guide and adds nucleotides in the correct order to form a new DNA strand.

Additionally, DNA polymerase has a proofreading function, where it checks the accuracy of the newly synthesized daughter strands. It detects and corrects errors by removing incorrectly paired nucleotides and replacing them with the correct ones. However, the separation of the two strands of nucleotides, also known as DNA unwinding, is primarily carried out by other proteins, such as helicases.

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Peptide bonds are used to join amino acids in a certain order determined by the nucleotide sequence in the DNA or RNA template to create polypeptide chains.

The distinctive characteristics of the resultant protein are determined by the amino acid sequence. Lanine, arginine, asparagine, aspartic acid, cysteine, glutamine, glutamic acid, glycine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, proline, serine, threonine, tryptophan, tyrosine, and valine are the twenty different amino acids that can be used to create a polypeptide chain.

A linear chain of amino acids joined by peptide bonds is referred to as a polypeptide chain. Each amino acid has a distinct side chain, an amino group, and a carboxyl group.

Amino acids are chemical molecules. The genetic code, which regulates the arrangement of nucleotides in a gene, determines the sequence of amino acids in a polypeptide chain.

Protein synthesis takes place in the ribosomes of cells and results in the formation of polypeptide chains. The messenger RNA (mRNA) nucleotide sequence is read by the ribosome, which then uses this data to construct a chain of amino acids in the proper sequence.

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D. No answer

However, to provide a complete answer, none of the hominins mentioned in the question had a single clear answer for this question.

While Homo erectus is often described as having a double-arched brow ridge, some specimens show variations in the shape and prominence of this feature.

Similarly, while Neanderthals are often characterized by their prominent brow ridges, not all specimens show a clear double-arched structure.

Likewise, Homo heidelbergensis exhibits variation in brow ridge morphology, with some specimens showing a more pronounced double arch and others exhibiting a more sloping forehead.

Overall, brow ridge morphology can vary within and between hominin species, and should be considered as one of several diagnostic features used to identify fossil specimens.

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The statement that is not true concerning enzymes is option d: "they can form covalent bonds with their substrates." Enzymes do not form covalent bonds with their substrates during the course of a reaction.

Enzymes act as catalysts, facilitating chemical reactions by lowering the activation energy required for the reaction to occur. They achieve this through several mechanisms, including options a, b, and c.

Enzymes do not require an input of energy from ATP for activation (option a). Instead, they utilize their own three-dimensional structure to facilitate reactions. Enzymes can change the shape of substrates (option b) by binding to them and inducing a conformational change that brings reactive groups together.

This helps increase the rate of a specific reaction. Additionally, enzymes can bring reactants together in the proper orientation (option c), allowing them to interact more efficiently and enhancing the likelihood of a chemical reaction.

Therefore, the correct statement is that enzymes do not form covalent bonds with their substrates, option d.

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Answer:

Microvilli are typical of these cells. These projections increase the absorptive area on the cell surface.

Explanation:

Epithelial cell surfaces show different structure shapes that allow the cells to adapt to and accomplish their functions. Most of these structures are related to the absorption surface and the need to move substances.

The development of microvilli is very common in epithelial cells. These are folds or finger-like projections emerging from the apical surface of the cell. Their principal function is to absorb. The microvilli of the intestinal epithelium are very uniform in size and distribution.