A scientist has been tracking and studying a population of deer in Yellowstone National Park. He surveys the population every six months. Usually, the population is thriving and has a gene pool with a wide variety of traits. But during one six-month period, an event occurred that affected the population, and when the scientist returned, the amount of genetic variation had decreased significantly. Which of the following is most likely the event that occurred to change the population?

Question

anonymous · Answer

A.Yellowstone National Park expanded its borders.
B.A population of wolves was introduced into Yellowstone National Park.
C.The amount of disease in the deer population decreased.
D.More grass and shrubs were planted in Yellowstone National Park.

anonymous · Answer

Hmm this is a tough choice

anonymous · Answer

I know, this is why I need help with the question lol @YoungLink

anonymous · Answer

I think its either B or C.

bioepic · Answer

I would say B.
Wolves would kill off the deer, and decrease the genetic variation by killing off the weaker deer.

bioepic · Answer

Thx for medal!