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 a population approaches the carrying - capacity of its environment due to limited resources. Scarce resources will limit population growth and shift it from exponential to logistic. An increase in birth rate, decrease in emigration, or increase in carrying capacity would not cause a shift to logistic growth from exponential growth in the context of this question.

Answer:

resources become scarce