During exercise, we undergo respiration. Therefore, we need oxygen and release carbon dioxide and water as waste products. When exercise become vigorous, we only run on anaerobic respiration with little oxygen, then lactic acid becomes a waste product instead of carbon dioxide and water. This occurs due to incomplete breakdown of glucose.
Best answer is C. lactic acid.
Answer:
human have 46 chromosomes 23 from female gametes
<span>A diet high in fiber can help prevent prevention:
</span><span>
-the constipation
-cardiovascular illnesses,
- Colon cancer
- <span>Obesity</span></span>
The answer to this question is : D.
