Question

an insecticide is something used to kill insects. what would most likely happen to a frog population if an environment were sprayed with an insecticide?
a. the population would increase because the frogs would eat all of the dying insects.
b. the population would increase because there would be more space to lay eggs.
c. the population would decrease because the food supply of the frogs would decrease.
d. the population would decrease because there would be more insects than frogs.

Explanation:

Insecticide is used to kill insects. Frogs often rely on insects as a food source. If the environment is sprayed with insecticide, the number of insects (the food supply for frogs) will decrease. According to the principle of food - supply affecting population size (a basic ecological concept), when the food supply of a population (frogs in this case) decreases, the population of the organism (frogs) is likely to decrease.

Answer:

C. The population would decrease because the food supply of the frogs would decrease.