Which are the most abundant and diverse of the extant vertebrates?
A)ray-finned fishes
B)birds
C)amphibians
D)nonbird reptiles
E)mammals

Question

Quizplus · Accepted Answer

Ray-finned fishes make up over half of all known vertebrate species, with over 30,000 described species. They are also the most diverse group in terms of habitat and morphology. The other options have lower numbers of species and/or are less diverse overall.

Which Are the Most Abundant and Diverse of the Extant