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vovangra [49]
3 years ago
6

Which of the following is marked by the appearance of organisms with hard parts?

Biology
1 answer:
My name is Ann [436]3 years ago
8 0

Answer:

a

Explanation:

bace i have done thos test

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Lactic acid fermentation ocurrs in muscle cells when____is in low. supply
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<h2>Answer </h2>

Lactic acid fermentation ocurrs in muscle cells when oxygen is in low supply

<u>Explanation</u>

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