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liq [111]
3 years ago
11

PLEASE HELP ASAP I'M BEING TIMED!!!!!!!!!!!!!!!!!!!!!!!!! HELP ME RIGHT NOW, PLEASE!!!!!!!!!!!!!!

Biology
2 answers:
forsale [732]3 years ago
6 0

Answer:

it's a okkkkkk

a

its aaaa

VashaNatasha [74]3 years ago
4 0

Answer:

I believe it is C.contraction and relaxation of the heart

Explanation:

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