NEET BIOLOGY

GENETICS AND EVOLUTION

EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Scientists studied a population of tree ants in a forest. The forest is near a large factory. At first there were many more brown ants than gray ants. The factory was slowly polluting the water, and the tree bark in the forest changed from brown to grey. At the end of the study, there were more gray ants than brown ants. What might explain this?
A
The gray ants killed the brown ants
B
The brown ants were killed by pollution
C
The gray ants were better adapted to the polluted tree bark
D
The scientists did not count the number of gray ants correctly
Explanation: 
There is 1 question to complete.