Refer to the figure.

-The figure shows the distribution of aspen in North America and the factors that limit it. If aspen evolved an adaptation that made it more drought-tolerant, the expansion of its range would most likely occur
A) in north central Canada.
B) in northwestern Canada and Alaska.
C) across the Great Plains of the United States.
D) in southeastern United States.

Question

Refer to the figure.
 
-The figure shows the distribution of aspen in North America and the factors that limit it. If aspen evolved an adaptation that made it more drought-tolerant, the expansion of its range would most likely occur
A) in north central Canada. 
B) in northwestern Canada and Alaska. 
C) across the Great Plains of the United States. 
D) in southeastern United States.

Quizplus · Accepted Answer

Aspen's range is currently limited by drought conditions in the Great Plains, so increased drought tolerance would likely allow it to expand into this area.

Refer to the Figure