Question

Explain how speciation, directional, disruptive, and stabilizing selection affect biodiversity.

Answer 1

Biodiversity is the variety of organisms that live in the biosphere. Speciation, directional, disruptive, and stabilizing selection affect biodiversity by showing the evolutionary process of new species, showing traits that are favored extremely, showing the variations of the traits, and showing the average individuals in each population.

Answer 2

Speciation forms new species.

Directional selection favors one extreme of a phenotype, which leads to evolution and adaptive change of a species.

Disruptive selection selects against the average and leads to evolution and genetic variation of a species.

Stabilizing selection favors the average individual in a population, which does not lead to adaptive change or evolution, and reduces variation.