Question

part a. using the graph above, in what year did the elk population reach its carrying capacity before the wolf re - introduction? a the elk population reached the ecosystems carrying capacity between the years 1931 to 1933. b the elk population reached the ecosystems carrying capacity in 1971. c the elk population reached the ecosystems carrying capacity between the years 1923 to 1931. d the elk population never reached the ecosystems carrying capacity. part b. what are two examples of why the elk population would reach the ecosystems carrying capacity before the wolf re - introduction? the elk population reached the ecosystems carrying capacity when they ate all the vegetation available causing several elk to starve and die. the elk population reached the ecosystems carrying capacity due to the decline of other wildlife in the area. the elk population reached the ecosystems carrying capacity due to an increase in land erosion which changed the path of the river resulting in the elk to dying of thirst. the elk population would reach the ecosystems carrying capacity when hunters were allowed to kill the elk for food. the elk population would reach the ecosystems carrying capacity when a natural disaster destroyed yellowstone forests.

Explanation:

For Part A, we need to analyze the graph to determine when the elk population reached its carrying - capacity before wolf re - introduction. For Part B, we consider ecological factors that could limit the elk population to reach the carrying capacity. Carrying capacity is the maximum population size of a species that an environment can sustain indefinitely. Factors like over - consumption of vegetation, natural disasters, or human - related hunting can cause a population to reach its carrying capacity.
For Part A, by observing the graph, we can see that the population stabilizes (indicating carrying capacity) between certain years. For Part B, over - consumption of vegetation and natural disasters are valid reasons for the elk population to reach carrying capacity.

Answer:

Part A: C. The elk population reached the ecosystem's carrying capacity between the years 1925 to 1931.
Part B: The elk population reached the ecosystem's carrying capacity when they ate all the vegetation available causing several elk to starve and die; The elk population would reach the ecosystem's carrying capacity when a natural disaster destroyed yellowstone forests.