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During exercise, muscles may not receive enough oxygen but they still need to generate usable energy.
Instead of waiting for more oxygen, they will switch to what type of respiration?

1. Alcoholic Fermentation
2. Lactic Acid Fermentation
3. Aerobic Respiration
4. Photosynthesis

2 Answers

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Answer 2 . Hope it helps!
User Slippery Pete
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Answer: 2. Lactic acid Fermentation

Explanation: I think this is correct because when your body and muscles run out of oxygen they revert to glucose and lactic acid in order to keep them functioning.

User Ovid
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