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Nataly [62]
3 years ago
6

Help ASAP PLEASE PLEASE PLEASE PLEASE

Biology
1 answer:
disa [49]3 years ago
3 0

Answer:

Explanation:

Ok so it will be the first one but it migt be the second on for the simple fact that they both use CO2 and O2

I might be wrong because i am working on that to in my Bio class

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