Some bacteria are helpful because they help us breathe by producing

asked Mar 3, 2021 231k views

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1 vote

Answer:

Some bacteria are helpful because they help us breathe by producing oxygen

Step-by-step explanation:

Rock Lee answered Mar 4, 2021

4.9k points

5 votes

Answer: Oxygen

Explanation: hope this helped you out ✌️

PMental answered Mar 8, 2021

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