How does genetic variation and mutation play a role in natural selection?

2 answers:

7 0

<span>Natural selection is a theory that states that those individuals who are best adapted to live in an area will survive and reproduce. Within a given population, there exists a normal degree of genetic variation that may or may not make an individual more adapted to the environment or, more importantly, changes in the environment. A species with a great deal of genetic variability is more likely to survive as a species in a changing environment than a species with limited variability.</span>

Juliette [100K]3 years ago

5 0

Some mutations may be favorable for survival Ex. A genetic mutation can cause animals to be more resistant to illnesses.

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Which macromolecule is soluble in water and not in oil?

MatroZZZ [7]

ODINAIRY TABLE SALT, Na Cl.

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The anterior and posterior lobes of the pituitary differ in that _____. View Available Hint(s) The anterior and posterior lobes

sleet_krkn [62]

Answer:

many anterior pituitary hormones regulate other endocrine glands whereas posterior pituitary hormones regulate nonendocrine tissues

Explanation:

Anterior pituitary or adenohypophysis is the anterior lobe of the pituitary gland. Secretion of endocrine cells of the anterior pituitary is controlled by regulatory hormones released by hypothalamus. The hypothalamic releasing hormones bind to anterior pituitary endocrine cells, upregulating or downregulating their release of hormones. Anterior pituitary hormones stimulate endocrine glands: FSH and LH (ovaries and testes), TSH (thyroid), and ACTH (adrenal cortex).

Posterior pituitary or neurohypophysis is the posterior lobe of the pituitary gland. It is not glandular it is just a collection of axonal projections from the hypothalamus. Posterior pituitary hormones regulate nonendocrine tissues: ADH-vasopressin (kidney tubules) and oxytocin (mammary glands, uterine tissues, brain).

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3 years ago

Directions: Select ALL the correct answers,

Alexxx [7]

Answer: Option B is incorrect rest all the statements are correct.

Explanation:

A single trait can be controlled by multiple genes: A single trait can need multiple gene to be controlled. There are many traits in the body which can be controlled by the multiple genes in the body.

A single trait can alter multiple genes: The activity of a single gene can alter the activity of the multiple genes of the body. The faulty protein produced by the gene can also effect the other genes of the body.

A single gene can influence multiple traits: A single gene in the body can affect multiple characters of the body. A single gene can be responsible or eye color, hair color, skin color et cetera.

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mars1129 [50]

Symbiosis...fungi exchange his nutrients and minerals from soil with solar energy from the plant

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4 years ago

Which of the following is a balanced equation representing the decomposition of lead(IV) oxide?

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I think the correct answer from the choices listed above is option A. The balanced equation representing the decomposition of lead oxide would be that <span>PbO2 = Pb + O2. It decomposes into oxygen gas and lead metal. Hope this answers the question.</span>

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