A population of lizards colonizes a region and feeds on small arthropod species. Over time, a small group within the population starts eating different types of worms. Over time, this group develops inherited traits that help them catch, eat, and digest the worms. The two lizard groups share the same habitat but no longer recognize each other's mating calls. What does this scenario best describe?

Question

(1 point)

Ospeciation without geographic isolation

◎ natural selection without speciation

increased genetic variation without speciation

decreased genetic variation with geographic isolation

Answer 1

Speciation without geographic isolation