Currently,the biggest factor having an effect on polar bear evolution is
A) convergent evolution.
B) polyploidy.
C) rapid environmental changes.
D) recent geographic isolation.

Question

Quizplus · Accepted Answer

Rapid environmental changes, specifically the loss of sea ice due to climate change, is the biggest factor currently affecting polar bear evolution. This loss of habitat is leading to changes in their behavior, diet, and ultimately their genetic makeup as they adapt to the changing environment.

Currently,the Biggest Factor Having an Effect on Polar Bear Evolution