Question

record followed by an outbreak of moose ticks. in the spring of 2010, scientists used an insecticide spray to kill the moose ticks of isle royale. describe how this action will change the graph.
a there would be a rise in the line representing the moose population that following summer, but it would decline once the winter set in.
b we would expect a gradual rise in the line representing the moose population first, then followed by a rise in the line representing the wolves.
c since the scientists killed off the ticks, we would see a rapid rise in the moose population, followed quickly by a rapid rise in the wolf population.
d the line representing the moose population would level

Explanation:

Moose ticks affect moose health/survival. Killing ticks (via insecticide) should improve moose survival/reproduction, so moose population (represented by a line) should rise. Option C explains that killing ticks leads to rapid moose population rise, then wolf population (predator of moose) rises rapidly due to more moose prey. This matches the ecological relationship (predator - prey dynamics) and the effect of reducing a parasite (ticks) on the host (moose) population. Other options: A suggests decline in winter (unrelated to tick control), B describes gradual moose rise then wolf rise (tick control should cause rapid moose rise), D just states moose population line level (no change description). So C is correct.

Answer:

C. Since the scientists killed off the ticks, we would see a rapid rise in the moose population, followed quickly by a rapid rise in the wolf population.