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Other quiz:

Musculoskeletal System › View

How do pairs of skeletal muscles work together?
A. while one contracts, the other returns to original length
B. both muscles contract at the same time
C. both muscles relax at the same time
D. 1 muscle pulls on the bone and the other pulls on the first muscle

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Enzymes › View

What happens when an enzyme denatures?

A. The enzyme becomes overused

B. The substrate has run out

C. The primary structure of the protein ahs changed

D. The shape of the active site has changed

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