The answer would be A. carbohydrates (carbs) because carbs are generally composed of sugars and glucose (as an example) has the ratio between carbon, hydrogen and oxygen in a 1:2:1 ratio in its form: C6H12O6
Spermatogonia is my answer
Yes our lungs will be clean and perfect.
Answer: The predator is an organism that lives by feeding on other organisms, while prey is usually the organism that is hunted or killed for food.
