Question

Are Chondrichthyes cold-blooded?

Answer 1

Chondrichthyes:

1. The class Chondrichthyes comprises carnivorous marine fishes.
2. Example: stingrays, electric rays, sharks, etc.
3. They are vertebrates. Their endoskeleton is made of cartilage.
4. Chondrichthyes are known as cold-blooded animals.
5. They are unable to regulate their internal body temperature. Their surroundings regulate the temperature of the body. Such animals are called poikilothermous organisms.