(a) Name the red pigment which carries oxygen in the blood (b) Why is it necessary to sepa
Channel: Doubtnut
Date: 2020-01-26

(a) Name the red pigment which carries oxygen in the blood (b) Why is it necessary to separate oxygenated and deoxygenated blood in mammals and birds ? (c) How many chambers are there in the heart of : (i) an amphibian, (ii) a mammals, and (ii) a fish ? (d) Describe the circulatory system in a fish.