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?
directional
disruptive
stabilizing
normal

Explanation:

In disruptive selection, extreme phenotypes are favored over intermediate ones. Since most earth - worms are either short or long (extreme phenotypes), this is disruptive selection. Directional selection favors one extreme over the other and intermediate phenotypes. Stabilizing selection favors intermediate phenotypes. Normal distribution has a bell - shaped curve with most values clustering around the mean.

Answer:

B. disruptive