Question

1. which of the following is an example of natural selection in action?

a. all lizards in a desert have the same skin color.

b. lighter lizards survive better in sandy environments and become more common.

c. scientists use a computer to study animal populations.

d. lizards move to a new desert.

Explanation:

Natural selection involves organisms with favorable traits surviving and reproducing more, leading to those traits becoming more common. Option A describes uniformity without selection. Option C is about research methods, not natural selection. Option D is migration, not selection. Option B shows lighter lizards (favorable trait for sandy environments) surviving better and becoming more common, which fits natural selection.

Answer:

B. Lighter lizards survive better in sandy environments and become more common.