Differentiate between class Chondrichthyes and class Osteichthyes.

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Solution

Chondrichthyes are a group of jawed fish with a cartilaginous skeleton.
Osteichthyes is a taxonomic category of fish with skeletons predominantly made of bone tissue.
Chondrichthyes
Osteichthyes
These are marine fishes. These are marine and freshwater fishes.
Tail fin is heterocercal. Tail fin is homocercal.
The internal skeleton is made up of cartilage. The internal skeleton is made up of bones.
The body is either spindle-shaped or flattened. The body is spindle-shaped.
Example: Shark, ratfish. Example: Sea horse, lung fish.

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Chondrichthyes	Osteichthyes
These are marine fishes.	These are marine and freshwater fishes.
Tail fin is heterocercal.	Tail fin is homocercal.
The internal skeleton is made up of cartilage.	The internal skeleton is made up of bones.
The body is either spindle-shaped or flattened.	The body is spindle-shaped.
Example: Shark, ratfish.	Example: Sea horse, lung fish.