Question

question 4 of 10
why did the most common color of peppered moths change after the
industrial revolution increased the amount of pollution in their habitat?
a. more light - colored moths than dark - colored moths migrated into
the area.
b. dark - colored moths did not taste as good to birds as light - colored
moths.
c. light - colored moths were harder to see on lichen - covered trees.
d. dark - colored moths were harder to see on soot - covered trees.

Explanation:

Before the Industrial Revolution, trees were covered with lichen, and light - colored moths were camouflaged. After pollution (soot covered trees), dark - colored moths had better camouflage. This is an example of natural selection. Birds would eat the more visible moths. So, dark - colored moths survived and reproduced more, making them the more common color. Option A is incorrect as migration is not the main reason. Option B is wrong as taste is not the factor here. Option C was true before pollution but not after.

Answer:

D. Dark - colored moths were harder to see on soot - covered trees.