3. Two years of dry weather are followed by two wet years, causing the grass population to rise. How will the increase in grass affect the animal populations? O A. Only the prairie dog population will increase
OB. Only the ferret population will increase.
O C Only the fox population will increase
OD. The populations of prairie dogs, ferrets and foxes will all increase
4. Frogs eat flies, snakes eat frogs, and hawks eat snakes. What would happen to the frogs if the hawk population suddenly decreased?