In a few generations, this population of beetles changed.
A group of bugs includes 13 black bugs and 4 green bugs. After a few generations, there are 13 green bugs and 4 black bugs.
Which is the most likely explanation for the change?
A. The beetle population moved to a greener habitat.
B. A natural disaster almost caused the extinction of the population.
C. The beetle population’s food sources decreased dramatically.
D. A mutation resulted in a new color of insect.
