Question

How respiration takes place in class Chondrichthyes?

Answer 1

Class Chondrichthyes:

1. It belongs to the phylum Chordata.
2. They are sea creatures that are rather huge and their body is either spindly or flattened dorsoventrally.
3. Gills are used for respiration. The chemical process through which organic substances release energy is known as respiration.
4. They compress the buccopharyngeal cavity while dilating the gill pouches, pulling water over the gills, where the exchange of oxygen and carbon dioxide occurs.
5. Pandas, crows, sharks, salamanders, alligators, sea squirts are examples of chordates.