snikergrace
26.01.2021 •
Biology
Coal to burning the coal
Solved
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Ответ:
I am a little confused on this "question".
Ответ:
When the chemical impulse from the motor neuron hits the muscle, it causes to muscle fibers to rachet past each other, overlapping each other more, so that the muscle gets shorter and fatter. When the impulses from the nerves stop, the muscle fibers slide back to their original positions.
Explanation: