Question

Choose the correct answers from the alternatives given.
Populations of peppered moths (Biston betularia) of England changed from 1% dark and 99% grey individuals to 99% dark and 1% light
individuals between 1848 and 1898. The selective agent causing the change was

• A. humans
• B. birds
• C. lichens on tree bark
• D. smoke

Answer 1

The correct option is B birds

Due to Industrial melanism, refers to the evolution of dark body colours in animal species that live in habitats blackened by industrial soot. The phenomenon has been documented in numerous species that hide from predators by blending in with their backgrounds. The main predator is bird.

So the correct option is B, birds.