Question

20) In natural ecosystems, the presence of predators lessens the effects of _________________ among the prey. A) competition B) infestation C) parasitism D) symbiosis

Answer 1

no it wasnt the answer was A

Answer 2

Answer: The correct answer for the blank is -

A) competition.

The predator population captures, kills and consume the prey (such as Lion eats leopard and other animals) Due to this, the size of prey population is reduced. This will eventually lead to decrease in competition for various resources (such as food, shelter, mates) within the prey population.