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16 January, 06:43

Which describes step three of a muscle contraction?

A: The sarcomere lengthens.

B: The space between sarcomeres increases.

C: Actin and myosin are partially overlapped.

D: Actin and myosin are completely overlapped.

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  1. 16 January, 10:29
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    I think the correct answer would be the spaces between sacromeres increase which would make actin active sites to be exposed and be able to proceed to the next step. Hope this answers the question. Have a nice day. Feel free to ask more.
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