10. What is true about muscles?
(a) Muscles can contract and relax.
(b) Muscle work in pair
(c) Muscle helps in movement of bone
(d) All the above
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Answer:
(d) all above these . is the answer
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Explanation:
it is d) all of above as muscles helps in contrqct and relax muscles also work in pair and they also help in movement.
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