Question

What happens when the bicep muscles in the arm contract?

1 The bicep muscles also lengthen.
2 The tricep muscles in the arm contract.
3 The tricep muscles in the arm shorten.
4 The tricep muscles in the arm lengthen.

Answer 1

The answer is number 4. The muscles length.

Step-by-step explanation:

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Answer 2

Answer is 4.


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