PLEASE HELP ASAP BTW THIS IS PE

2 answers:

3 0

Answer and Explanation:

Number 20 is correct. When something using oxygen, it is aerobic.

For number 21, the answer would be anaerobic. When things doesn't have oxygen, it is anaerobic.

<u><em>#teamtrees #PAW (Plant And Water)</em></u>

Finger [1]3 years ago

3 0

20: aerobic 21: anaerobic

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