Question

Which of the following examples results from disruptive selection? a. The birth weight at which newborn humans are most likely to survive and the average weight of newborn humans are about the same. b. There is an increase in antibiotic-resistant strains of bacteria. c. There is an increase in the number of different breeds of dog. d. Garter snakes with different coloration patterns behave differently when threatened.

Answer 1

Letter D is the correct answer.

Disruptive selection, also known as diversifying selection, is a type of natural selection that drives a population apart. This type of selection is based on the variation of a trait in a population. For instance, Garter snakes that have a different coloration pattern behave in different manners when threatened.