Belle is studying a population of moose on an island and the shape of the popula

Question

Belle is studying a population of moose on an island and the shape of the population growth curve is S-shaped, with population size plotted on the vertical axis and time plotted on the horizontal axis. Likely what accounts for the flattening of the curve at the top?

A. Aging of animals so they no longer reproduce.

B. Shortage of resources, raising the death rate and lowering the birth rate.

C. Exponential growth.

D. Density suddenly lowered.

A. Aging of animals so they no longer reproduce.

B. Shortage of resources, raising the death rate and lowering the birth rate.

C. Exponential growth.

D. Density suddenly lowered.

Explanation / Answer

Answer: Option B. Shortage of resources, raising the death rate and lowering the birth rate

The death rate and birth rate become balanced, and the population attains equilibrium.

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