Question

The phenomenon of industrial melanism demonstrates

• A. geographical isolation.
• B. natural selection.
• C. reproductive isolation.
• D. induced mutation.

Answer 1

The correct option is B

natural selection.

Before industrialisation, the tree trunks had more of light-winged moths. After industrialisation, increase in soot and dust darkened the tree trunk and the white moths were easily spotted by predators. So only the dark-winged survived this predation. So, their population increased. This is called industrial melanism.