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Sergeeva-Olga [200]
3 years ago
11

Enzymes, antibodies, hormone, and muscle are roles played by _____?

Biology
1 answer:
SIZIF [17.4K]3 years ago
3 0
The answer is B hope it helps.

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Animals that have a complete<br>tube-like gut with two openings​
AfilCa [17]

Answer:

All mammals, like dogs, cats, and humans; reptiles, amphibians, fish, birds, and even insects.

Explanation:

All mammals, like dogs, cats, and humans; reptiles, amphibians, fish, birds, and even insects are the animals that have a complete  tube-like gut with two openings​. A system having a tube with two openings i.e. mouth and an anus is called tubular system. In this tubular system, the animals eat with one opening and the other opening is used for excretion of waste and nitrogenous materials from the body so that's why most of the animals have two openings.

7 0
3 years ago
What happens to the air that a emperor penguin breathes in?
enot [183]
Emperor penguins need lungs to breathe. In penguin lungs, air never stops. ... Once the air goes farther into the trachea it splits into two different directions into both lungs. To get the oxygen into the blood cells, it must come "within small distance of the penguin blood cells".
6 0
2 years ago
What roles do photosynthesis and cellular respiration play in the carbon cycle
FrozenT [24]
They convert carbon into other 'waste' products like oxygen. To put it simply it removes carbon from the carbon cycle.
6 0
3 years ago
The suprachiasmatic nucleus influences the release of melatonin by its effect on the ________________.
anyanavicka [17]

Answer:

Pineal gland

Explanation:

The suprachiasmatic nucleus is the paired nucleus made of about 1000 neurons each in the hypothalamus. The suprachiasmatic nucleus is involved in maintaining the endogenous clock or the internal clock.

The suprachiasmatic nucleus controls the circadian rhythm by controlling the amount of melatonin. The melatonin is produced by the pineal gland from the serotonin and tryptophan precursors.  The hypothalamus thus controls the amount of the melatonin by regulating the pineal gland.

Thus, Pineal gland is the correct answer.

5 0
3 years ago
The dna nucleotide is composed of three parts. which two components make up the nucleotide backbone?
riadik2000 [5.3K]
E answer to your problem is SUGAR AND PHOSPHATE
3 0
3 years ago
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