(a) Why is diffusion insufficient to meet the oxygen requirements of large multicellular organisms like humans ? (b) What type of arrangement exists in the bodies of large animals to meet their oxygen requirements adequately ? (c) What advantage a terrestrial animal has over an aquatic animal with regard to obtaining oxygen for respiration ?

(a) Why is diffusion insufficient to meet the oxygen requirements of l

1.	(a) Why is diffusion insufficient to meet the oxygen requirements of large multicellular organisms like humans ? (b) What type of arrangement exists in the bodies of large animals to meet their oxygen requirements adequately ? (c) What advantage a terrestrial animal has over an aquatic animal with regard to obtaining oxygen for respiration ?
Answer» (a) Why is diffusion insufficient to meet the oxygen requirements of large multicellular organisms like humans ? (b) What type of arrangement exists in the bodies of large animals to meet their oxygen requirements adequately ? (c) What advantage a terrestrial animal has over an aquatic animal with regard to obtaining oxygen for respiration ?