Biology
Biology, 06.09.2019 23:30, jayjay7621

When the muscle cell contracts
a. the z-lines become closer together
b. the muscle shortens
c. the z-lines become farther apart
d. a and b
c. a, b and c

answer
Answers: 1

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When the muscle cell contracts
a. the z-lines become closer together
b. the muscle short...

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