Question

Explain how animals in Vertebrata are classified into further subgroups.​

Answer 1

Explanation:

These animals have a dual mode of life. In the larval stage, the respiratory organs are gills, but in the adult stage, respiration occurs through the lungs or skin. They lay eggs in water.

Answer 2

animals are further classified according to the several criteria like exoskeleton, respiratory organs, method of giving birth, number of chambers in heart, mode of living etc...., they are further classified into classes, Pisces,Amphibia, reptillia, Aves and mammals........,

$@NUSRAFATIMA$