1.

Why is the diffusion is not sufficiant to meet the rewuirement of multicrllular organism?

Answer»

The OXYGEN REQUIREMENTS of an animalcannot be met by the process ofdiffusion as diffusion is a very slow process. ... This HELPS for the higher animals like HUMANS to meet thesufficient oxygen requirement. Unlike unicellular organisms, multicellularcells are not in direct contact with the outside environment.



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