Question

Describe the three classes of fish
Agnatha-
Chondrichthyes-
Osteichthyes-
@AllieJade07

Answer 1

Agnatha- is a superclass of jawless fish in the phylum Chordata, subphylum Vertebrata. The group excludes all vertebrates with jaws, known as gnathostomes.
Chondrichthyes-Chondrichthyes or cartilaginous fishes are jawed fish with paired fins, paired nares, scales, a heart with its chambers in series, and skeletons made of cartilage rather than bone
Osteichthyes-Osteichthyes, also called bony fish, are a taxonomic group of fish that have bone, as opposed to cartilaginous, skeletons.

Answer 2

tyvm

Answer 3

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