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ozzi
3 years ago
9

18

Biology
1 answer:
disa [49]3 years ago
8 0

Answer:

B

Explanation:

Countershading is a form of concealing coloration in which the upper surfaces of the body are more darkly pigmented than the unilluminated lower areas, giving the body a more uniform darkness and a lack of depth relief.

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Land from which water runs off into streams is known as a
Gelneren [198K]

Answer

The answer is watershed and that is an area that catches all the rain and snow.

3 0
3 years ago
What were the first living “things” called? (between 3.9 and 3.5 billion years ago)
jolli1 [7]
Bacteria have been the very first organisms to live on earth in the waters of the first oceans. At first, there were only anaerobic heterotrophic bacteria.
4 0
3 years ago
You are conducting a twin study to estimate the heritability of a particular trait and have found that monozygotic twins have a
iogann1982 [59]

Answer:

The correct answer is "high heritability".

Explanation:

Concordance, is a term used in genetics to describe the probability that one of the twins have certain trait if his brother certainly has it. A high percentage of concordance, such as 75%, is translated into high heritability since monozygotic twins have identical genomic sequences. Additional information to determine heritability will be to study the exposure to similar environmental conditions, since environment can also affect the presence of certain traits.

4 0
2 years ago
How are hormone levels regulated?
sukhopar [10]

The correct answer is 2. By a feedback loop.

Hormone levels in the body is regulated by negative feedback mechanism. In this mechanism, a stimulus stimulates the release of a substances. After the effect of that substance its further release is inhibited. This can be understood by an example, the anterior pituitary gland stimulate the thyroid gland to release thyroxin and on increasing the thyroxin in the blood, feedback the hypothalamus and anterior pituitary to inhibit further release of thyroxin from thyroid gland.

5 0
3 years ago
Compared to aerobic respiration how efficient is fermentation
VashaNatasha [74]
A<span>naerobic cell </span>respiration<span> (glycolysis + </span>fermentation<span>) produces 2 ATP/glucose consumed. ... </span>Aerobic<span> cell </span>respiration<span> is roughly 18 times more </span>efficient<span> than anaerobic cell </span>respiration<span>. Your cells require a lot of energy and are dependent on the high </span>efficiency<span> of </span>aerobic respiration<span>. They quickly die if deprived of oxygen.</span>
7 0
3 years ago
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