Question

which type of selection leads to increased phenotypic and genetic variation?
directional selection
disruptive selection
stabilizing selection
species selection

Explanation:

Disruptive selection favors extreme phenotypes over intermediate ones, leading to increased phenotypic and genetic variation in a population. Directional selection favors one extreme phenotype, reducing variation in one - direction. Stabilizing selection favors the intermediate phenotype, decreasing variation. There is no such standard term as "species selection" in this context.

Answer:

B. disruptive selection