q what are the two major classes into which
Q What are the two major classes into which fishes are divided?
Ans. Fishes are divided into two major classes: osteichthyes, bony fishes (tuna, sardines, salmons) , and chondrichthyes, fishes with cartilaginous skeletons (sharks, rays, dog-fishes).
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q what are the two major classes into which fishes are dividedans fishes are divided into two major classes osteichthyes bony fishes tuna sardines
q from which features do osteichthyes and condrichthyes get these nameschondros means cartilage ictis means fish both from the greek the name
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