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ch4aika [34]
4 years ago
8

What indicates to a muscle that it should contract

Biology
1 answer:
andrezito [222]4 years ago
8 0
Muscles contract after being activated by motor neurons.
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And in Evolutionary Relationship, we do it to help see how animals evolve as well.

Remember that all of this has something to do with Evolution and the change of Physical Structure.

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