Question

Muscle cells have ____________ that change both their shape and their arrangement in cell in response to nervous impulse.

Answer 1

Answer:

Muscle cells have special proteins that change both their shape and their arrangement in cell in response to nervous impulse.

Explanation:

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Answer 2

Answer:

Muscle cells have special protein that change both their shape and their arrangement in the cell in response to nervous electrical impulses.

Explanation:

when this happens, new arrangements of these proteins give the muscle cells a shorter form

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