Question

a muskrat population is growing exponentially. what might cause this population to enter logistic growth?
resources become scarce
birth rate increases
emigration decreases
carrying capacity is increased

Explanation:

Logistic growth occurs when population growth slows due to limiting factors. When resources (food, space, etc.) become scarce, the muskrat population can no longer grow exponentially and enters logistic growth. An increase in birth rate or decrease in emigration would likely increase growth, and an increased carrying capacity would allow more growth, not trigger logistic growth.

Answer:

A. resources become scarce