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Arlecino [84]
3 years ago
9

The release of ________ to muscle cell receptors triggers muscle contractions.

Biology
1 answer:
AnnyKZ [126]3 years ago
3 0

Answer:

<em>The release of </em><u><em>acetylcholine</em></u><em> to muscle cell receptors triggers muscle contractions.</em>

Explanation:

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