The most diverse fish group is the
A)ray-finned fishes.
B)lung-fishes.
C)lobe-finned fishes.
D)cartilaginous fishes.
E)None of the choices is correct

Question

Quizplus · Accepted Answer

Ray-finned fishes (class Actinopterygii) are the most diverse fish group, comprising over 30,000 species. They include a vast range of fish types, from tiny guppies to massive marlins, and inhabit almost every aquatic environment on the planet. Lung-fishes (class Dipnoi) and lobe-finned fishes (class Sarcopterygii) have significantly fewer species and are generally less diverse. Cartilaginous fishes (class Chondrichthyes) include sharks, rays, and chimeras, but also have lower species diversity than ray-finned fishes. Therefore, A) ray-finned fishes is the correct answer.

The Most Diverse Fish Group Is the