In the interaction between wolves and moose, wolves prey on moose, thereby reducing their population. later the wolf population decreases as fewer moose are available to feed upon, thereby leading to a rise in the moose population. what does this example illustrate? a-predation can affect population size b-competition can affect population size c-parasitism can limit the growth of population

In this interaction between moose and wolves it highlights how A) predation can affect population size. Because of the predatory nature of the wolf species as its population increases and eats more moose this will decrease the moose population potentially later decreasing the population of wolves because there are not enough moose to sustain the new high levels of wolves. This predatory cycle impacts the size of both the wolf and moose populations. 

Were is the question

Ten percent of energy is transferred from sun to the level indicated.