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Bess [88]
2 years ago
15

The main role of this system is to provide the gas exchange between the blood and the environment. Which body parts perform this

function?
A) nose, trachea, lungs
B)brain, spinal cord, peripheral nerves
C)heart, blood vessels, blood
D)mouth, esophagus, stomach
Biology
1 answer:
astraxan [27]2 years ago
8 0

Answer:

A

Explanation:

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Answer:

D. Dynamic equilibrium

Explanation:

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7 0
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Penicillin is Choose one: A. produced by a mold and was discovered accidentally. B. a human-designed antibiotic, synthesized to
NeX [460]

Answer:

Option-A

Explanation:

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Thus, Option-A is the correct answer.

4 0
3 years ago
Models help people study things that _____. ( science )
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Answer:

C. Can't be observed directly

5 0
3 years ago
Receptors for acetylcholine are located on the
elena-s [515]

Answer:

plasma membrane of the target cell

Explanation:

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  2. nicotinic ACh receptors (nicotin is agonist) which are  ligand-gated ion channels involved in the fast response. They are located at neuromuscular junctions but also in CNS (involved in synaptic transmission between two neurons).
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Ksenya-84 [330]

Answer:

<u><em>Difference perspective</em></u> suggest that there may be a number of physiological, genetic, and biological differences between men and women.

Explanation:

Studies on difference of perspectives show that there are many differences between men and women. Not only are they biologically or genetically different, but their thinking and physiology also differs a lot from men. Every aspects when studies in detail shows how men can be different from women. These differences may be to the genetic factor and also due to the environment and society.

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