There has been an increase in the number of chambers in heart during evolution of vertebrates. Give the names of the class of vertebrates having two, three or four chambered heart. Eduinfy.com

NCERT Solution: Animal Kingdom

There has been an increase in the number of chambers in heart during evolution of vertebrates. Give the names of the class of vertebrates having two, three or four chambered heart.

NCERT Exampler

There has been an increase in the n u m b e r of chambers in heart during evolution of vertebrates. Give the names of the class of vertebrates having two, three or four chambered heart.