Assertion – Predation is an interspecific interaction where one species eats another.
Reason – Predator and their prey maintain fairly equal population through time.
Predation is a complex interspecific interaction with a feeding strategy i.e., one species eats another. The population of the prey is regulated by the number of predators, but if the population of the prey drop heavily, the predator population also drops because they run out of food. Thus predator and their prey maintain fairly stable population through time and one population does not become abundant or scarce, without affecting the other. However, the population size of the prey or the predator does not explain the predatory interaction, therefore the two statements are not related, and Reason does not explain Assertion.