Question

Choose the correct answers from the alternatives given.
The cartilaginous fish include all except:

• A. lampreys
• B. sharks
• C. skates
• D. rays 73

Answer 1

The correct option is A lampreys

Lampreys (sometimes also called, inaccurately, lamprey eels) are an ancient, extant lineage of jawless fish of the order Petromyzontiformes, placed in the superclass Cyclostomata. The adult lamprey may be characterized by a toothed, funnel-like sucking mouth. Chondrichthyes is a class that contains the cartilaginous fishes: they are jawed vertebrates with paired fins, paired nares, scales, a heart with its chambers in series, and skeletons made of cartilage rather than bone with sharks, skates and rays as a part.

So, the correct option is, 'Lampreys'.