Question

Why do animals with large body size have respitory pigment to deliver oxygen to different tissues ??name the respitory pigment and it's location in human body??????
Pls give me answer as it's too urgent....

Answer 1

Large body size animals have respiratory pigment because blood is not able to carry oxygen to all the tissues. Respiratory pigment increases the oxygen carrying capacity of blood.
Heamoglobin is the pigment which carry oxygen to different parts of the body
it's present in the blood stream
Heamoglobin is a macromolecule and is most important protein in the body

Answer 2

Many of the living organisms have haemoglobin as respiratory pigment