The part of the ear that vibrates first when sound waves enter the ear is the

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Answer 1
Answer: The answer is the eardrum. The eardrum is connected to 3 ossicles, the hammer, the anvil, and the stirrup or malleus. It is the part of the ear that vibrates first when sound waves enter the ear.

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If you've been sitting in the hot Sun and start to sweat, your body responds from a _____. positive or negative feed back?

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If you've been sitting in the hot sun and start to sweat, your body responds from a negative feedback.
The body responds from a negative feedback. Homeostasis is carried out in the human body under the principal of negative feedback, where changes are made in order to counteract the effect of a stimulus. For example, the stimulus is the sun and its effect is your body heating up. Therefore, by sweating, the body tries to reduce its temperature.

List reasons you would or would not be concerned about eating genetically modified food.

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I would be disturbed because of the hormones that would be pumped or the unhealthy products that are put in it.

Translation of mRNA into segments of tRNA allows which organic molecules to combine to form proteins at the ribosome?

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Answer:

The correct answer would be amino acids.

Translation is the process of formation of polypeptide chain in which nucleotide sequence of DNA is decoded to amino acid sequence via mRNA.

It takes place at ribosomal site in a cell where mRNA is placed between small and large sub-units of the ribosome.

tRNA decodes the mRNA codon sequence with the help of anti-codon site present in it.

Positive interaction between codon and anti-codon site leads to the addition of specific amino acids to the growing polypeptide chain from charged tRNA.

It allows amino acids to form proteins

In aerobic respiration, what is the direct source of energy that ATP synthase uses to synthesize ATP?

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Answer:

The correct answer would be the proton gradient.

Oxidation of NADH and FADH₂ release high energy electrons which are passed through the electron transport chain.

Some of the energy of these free electrons are used to form a proton gradient across the inner membrane of mitochondria in which the enzyme ATP synthase is placed.

The protons from the inter-membrane space pass down the concentration gradient through ATP synthase.

The movement of protons (charged particles) down the concentration gradient produces energy some of which is used by ATP synthase in order to phosphorylate ADP into ATP.


I think its the proton gradient

Which of the following statements is true? Acquired mutations are passed down from parent to offspring. Mutations are the most fundamental way to add new genes to a gene pool. Hereditary mutations are caused by external factors, such as radiation. Only somatic mutations are important to evolution because they can be inherited.

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Answer: Mutations are the most fundamental way to add new genes to a gene pool.

Explanation:

A mutation is either permanent or temporary changes that may occur in the DNA sequence of the organism that makes up a gene which is the functional unit in the organism. These mutations will add genetic variations in the gene pool of the population. Those mutations which are hereditary which means they can be transmitted from parents to offsprings are called as germline mutations.  

Acquired (somatic) mutations are those mutations which occur's during a persons life. These mutations occur due to ultraviolet radiations. These mutations occur in the somatic cells not in the germ cells therefore, these cannot be passed from one generation to the next.

Acquired mutations are passed down the line.

arrange the different phases in the correct order. write down only the correct letter and no phase can be repeated​:based on meiosis.

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The different phases in the correctorder:

Correct order: A B C D E F G H I

What is meiosis?

Meiosis is a type of cell division that occurs in sexually reproducing organisms to produce gametes (eggs and sperm). It involves two rounds of cell division, resulting in four daughter cells with half the number of chromosomes as the parent cell. Meiosis is important for maintaining the correct number of chromosomes in a species, as well as creating genetic diversity by mixing up the genetic information from the parents. It is a complex process that involves a series of phases including prophase I, metaphase I, anaphase I, telophase I, and then prophase II, metaphase II, anaphase II, and telophase II. During meiosis, homologous chromosomes pair up and exchange genetic information through a process called recombination, and then separate during the first division. The second division separates the sister chromatids, resulting in four haploid cells that are genetically distinct from each other and from the parent cell.

Here,

A. Interphase

B. Prophase I

C. Metaphase I

D. Anaphase I

E. Telophase I

F. Prophase II

G. Metaphase II

H. Anaphase II

I. Telophase II

To know more about meiosis,

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