Science, asked by raj7856, 6 months ago

_____ work in pairs by contracting and relaxing .​

Answers

Answered by Anonymous
1

Answer:

Muscles move body parts by contracting and then relaxing. Muscles can pull bones, but they can't push them back to the original position. So they work in pairs of flexors and extensors. The flexor contracts to bend a limb at a joint.

Explanation:

Answered by aryaastik3166
0

Answer:

muscles is the answer.......

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