Solutions For 9780131905429 Chapter 5 Problem 29A

The population of predators and their prey depend on each other. So they end to show cyclical changes. If there is a sudden increase in food for prey, the population of the prey increases. If the population of the prey increases, the predator will have more food, so its population will start to increase. This means that more prey will be eaten, so its population will decrease, so causing a cycle in both populations.