Biology - Gaseous Exchange

The heart of the fish is single circuit and the blood flows in? Carbon dioxide is carried as carboxy hemoglobin? The __________ system of the cockroach is very specialised? Lung capacity in an adult human? In the lungs of birds instead of already tiny thin walled ducts are present called _________? Hydra has no specialized _________ for respiration?

ISSB Test

ISSB Tests