Question

What are the defining characteristics of chondricythyes?

Answer 1

Species in this class have paired fins, hard scales, a two-chambered heart, and a pair of nostrils. Most species have 5-7 gill slits on each side of their body.

Answer 2

Chondrichthyes are cartilaginous fishes and are mostly marine with basic fish attributes.

Chondrichthyes

They are a class of fishes known as cartilaginous fishes. They possess all the characteristics of fishes in addition to features such as:

• living mostly in marine habitats
• possessing a pair of jaw
• the central placement of the mouth
• possession of cartilaginous skeletons instead of bones

More on Chondrichthyes can be found here: https://brainly.com/question/3520910

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