Question

wolves are predators for hares. the wolf population increases. what happens next?
a. the hare population increases.
b. the death rate of hares increases.
c. the birthrate of wolves decreases.
d. the birthrate of hares increases.

Explanation:

Wolves are predators of hares. When wolf population increases, they hunt more hares. This leads to higher hare death rate. Option A is wrong as more predators mean fewer hares (not increased population). Option C is incorrect as increased wolf population (more wolves) would likely have stable or increased birth - rate (more wolves to reproduce). Option D is wrong because with more predators, hares are more focused on survival (not reproduction, so birth - rate won't increase).

Answer:

B. The death rate of hares increases.