Question

How can natural selection acting on allele frequencies of a gene that controls body coloration result in populations of 3 different species of desert dwelling lizards where light colored morphs dominate in the white sand dunes environments, and darker morphs dominate in the shrubby environments?

Answer 1

There is found different colour pattern in the dead lizard because of presence of Predator in the desert such as birds coyotes.

The desert dwelling lizard which are living in the white sand dunes have white light coloured. Because the white light coloured provide the protection to the dwelling measured from the predators. That's why the lizard which are white in colour will survive more and reproduce more. This will leads to the natural selection in the lizard which are living on the white sand.

The desert dwelling lizard which are living in the shubby environment have darker morph. Because this darker morph of the lizard will help them to protect from the predators. That's why the dark more containing lizard will survive more and reproduce more and this will leads to the the selection of the the dark colour in the dwelling lizard which are living on the shrubby environment.