At one time, Chondrichthyes were thought to have split off from other vertebrates before the evolution of bone. Now we have conc

Question

Evgen [1.6K]

3 years ago

13

At one time, Chondrichthyes were thought to have split off from other vertebrates before the evolution of bone. Now we have conc

luded that the Chondrichthyes split off after the evolution of bone had started. This change demonstrate

Biology

1 answer:

Goshia [24] · Answer 1 · 2022-02-25T18:50:03+03:00

Answer:

Chondrichthyes Class of vertebrate animals characterized by a cartilaginous endoskeleton, a skin covered by placoid scales, the structure of their fin rays, and the absence of a bony operculum, lungs, and swim bladder. It includes the subclasses Elasmobranchii (sharks, rays) and Holocephali (ghostfish).

Explanation: