Question

answer it fast please ​

Answer 1

Answer:

two bones of muscle work together to

Answer 2

Your final answer is Two muscles(b)

Explaination,

We know that muscles do contraction and relaxation in which always 1 pairs of muscle( 2 muscle ) are present ( one for contractions and other one for relaxation)

.As a bone moves ...contraction muscle did work to move bone forward....and to move back the bone ....relaxation muscles did work ...they both work in pair. Therefore two muscles are needed for movement of a bone

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