Question

give reason: diffusion is insufficient to meet the oxygen demand of multicellular organisms like human beings

Answer 1

because there are billions of cell inside the body diffusion is impossible for them and they need contineus supply of oxygen and simontanios exhale of carbondieoxide which is completed by r rspiratory system 

Answer 2

Nice question

● Diffusion is insufficient to meet the oxygen requirement of multicellular organisms like human because the body design of multicellular organism like human is very complex.

● They have specialized cells and tissue for performing various necessary functions of the body.

● So oxygen demand of multicellular organism is quite high. As diffusion is very slow process the oxygen requirements of multicellular organism can not be done by diffusion.

● The cells of the the unicellular organisms are in direct contact with out side environment whereas in multicellular are not.

● So, diffusion is insufficient to meet the oxygen requirements of multicellular organism like human as diffusion

is very slow process.

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