Question

Which of the following would be a good reason for a species to undergo cyclic population changes?

A.) The keystone species in its ecosystem is removed.
B.) the vegetation it eats increases and then decreases repeatedly with changing seasons.
C.) Its predator is preyed upon by a new species introduced to the ecosystem.
D.) Climate Change alters the Prevalence of parasites that affect the species.

Answer 1

Your answer would be B.
Because, all the other answers could result in a decrease of the population of the specie (but it wouldn't be cyclic).

Answer 2

The correct answer is option B.) "the vegetation it eats increases and then decreases repeatedly with changing seasons".

Step-by-step explanation:

A cyclic population change is defined as a phenomenon at which organism populations rise and fall over a constant and predictable period of time. A reason that a species could undergo this type of populations changes is that the vegetation it eats increases and then decreases repeatedly with changing seasons. As a result the population of the primary consumer specie will increase and decrease at the same pace as the vegetation.