Answer:
For a contraction to occur there must first be a stimulation of the muscle in the form of an impulse (action potential) from a motor neuron (nerve that connects to muscle). Note that one motor neuron does not stimulate the entire muscle but only a number of muscle fibres within a muscle.
Explanation:
Answer:
synthetic fiber
Explanation:
because it contains chemicals
Answer:
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Explanation:
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D) DNA is found in chromosomes in the nucleus, while RNA can move around the cell.