what do our muscles need in order to work? answer class 2
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Answer:
Our muscles need signals from our brain and energy from our food to contract and move.To build new muscles through exercise, we make use of their remarkable activity to repair themselves when damaged.
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Answered by
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Explanation:
Our muscles need signals from our brains and energy from our food to contract and move. To build new muscles through exercise,we make use of their remarkable ability to repair themselves when damaged
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