Answer:
The right answer is A
Explanation:
Because animals take in sugar and oxygen, break them down and release carbon dioxide and water along with ATP as usable energy.
Answer:
the food chain is more stable and lasting
Explanation:
where there is an ecosystem with lots of plants and animals you get a stable food chain. where there are fewer plants and animals most animals have to compete with other animals for food.
Answer:
The mutation for sickle cells will start to disappear because there's no benefit to carrying the disease if malaria is cured.
Explanation:
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