How the environment may affect the phenotype of an organism?

Question

use examples.

Thanks

Answer 1

Some animals have temperature-sensitive phenotypes.  A fox will get new fur when the weather warms up in the spring.  Overtime, when environment changes, an animal might only mate with another animal with a mutated genotype that causes it to have a phenotype fitting to the new environment.  Before the Industrial Revolution, the trees in London were white, white moths blended in and never got eaten, and the few black moths died because they did not blend in. During the the Industrial Revolution, the trees turned black because all of the nasty pollution and soot, and the black moths became the norm.

Answer 2

environment affects the phenotype(external characters).

eg. In the polar region bear and foxes have thick furr..

while n other regions they are normal.

Whale is a mammal..but it has became water prone it various parts have turned like fishes..camel in dessert have hump to store water and flat feet so tht i doesnt sink n dessert..