The answer to this question is C. Depressants
There is a community of organisms but no no living components
<span>The anterior end of an earthworm contains an organ that detects smells. Evidence of this is the way the earthworms responded to the ammonia. The earthworms backed away from the ammonia when it was waved near their anterior end, but they did not respond at all when the ammonia was waved near their posterior end.</span>
The functions that both the nerve cells and muscle cells
have in common are the following;
-
Both cells are excitable
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They both experience voltage difference in the
cell membrane
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The cell membrane of both of cells has electrochemical
impulses