Explanation:
I think the answer is contraceptive pills but not sure
Answer: I think three red and one white.
Hope this helps.
Explanation:
When prey is abundant, predator populations increase because more young are able to survive. More predators kill more prey, which, along with food scarcity, decreases the population. When prey becomes more scarce, the predator population declines until prey is again more abundant. Therefore, the two balance each other.