http://www.tiem.utk.edu/bioed/bealsmodules/pred-prey.gph1.gifLet me first explain the definitions.
Predator : A predator is an organism that kills and feeds on other organisms
Prey: the organisms that are eaten are called prey.
An increase in the population size would provide more food for the predator, thus the increase in predator will in turn result in a decrease in population of the prey as more predator feed on them and eventually the predator population will decrease as well, and there would be a rise in the prey population again.
This cycle repeats itself but the average size of the prey population is greater than that of the predator population.
Two predators with the same prey
The land snail is eaten by fishes and frogs
