Question

In which of the vertebrate group/groups heart doesn't pump oxygenated blood to different parts of the body?

Answer 1

Pisces & amphibia doesn't pump oxygenated blood

Answer 2

Answer :

d

Solution :

==> In Pisces (fishes), the heart is 2 chambered oral pumps deoxygenated blood to the gills, where oxygenation takes place by diffusion.

==> The oxygenated blood from the gills is supplied to the body parts where oxygen is utilised and CO2 enters it making the blood deoxygenated.

==> This deoxygenated blood returns to the heart. Thus, it has single circulation , i.e., blood passes through the heart only once during one complete cycle .