Question

In a population of lizards living near a pond, one lizard is suddenly born with webbed hind feet. Such feet enable the lizard to swim fast enough so that it can catch insects in the water as well as on the shore. The factor for evolutionary change in this is

Answer 1

The lizard has abetter chance of surviving and producing offspring than does a non-webbed-foot lizard.

Answer 2

The lizard impresses his friends and the lady lizards. Helps him progress in social status faster than his classmates.

Answer 3

mutation

Answer 4

..... through natural selection (by producing more offspring then the non-webbed hind feet lizard)