Question

Is a shark a fish or a mammal?

Answer 1

shark is belongs to phylum chordata .
in Pisces group class chodrichthyse.
conclude that it is viviparous which is mammal

Answer 2

Answer:

Sharks are fish. Sharks are a special type of fish known because their body is made out of cartilage instead of bones like other fish.

Sharks are not mammals as they do not possess any of the characteristic features that define a mammal. Sharks are considered a species of fish, but unlike most fishes, a sharks' skeleton is made of cartilage. Sharks are carnivores and they feed on other smaller fish.

hope it helps you