Question

Carlos is collecting data about the length of earthworms in his backyard. The shortest worm he found is 4 inches long; the longest worm is 8 inches long. If most of the worms are either short or long, which type of distribution is displayed in the population?
options:
a. directional
b. disruptive
c. stabilizing
d. normal

Answer 1

The answer is going to be B because I know the answer

Answer 2

The correct answer is B. Disruptive.

I disruptive natural selection the extreme values for a phenotype are favored. This causes a disruption in the middle of the graph for phenotype distribution, as there is a selection against the average phenotype, hence the name.

In this case of worms, the longest and the shortest worms are the most present, therefore we can conclude that the natural selection is disruptive and favors both of the extremes (short and long) of the phenotype.