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Alexus [3.1K]
2 years ago
7

PLEASE help i need this

Biology
2 answers:
Tju [1.3M]2 years ago
5 0
The answer is B have a great day!
hodyreva [135]2 years ago
3 0
The answer is B , A I think
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Just use the half-life formula(I linked it below)

a. 4(1/2)^90/30=1/2

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answer would be D) Cell Plate

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