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Why diffusion insufficient to meet the …

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Why diffusion insufficient to meet the oxygen requirement of multi cellular organisms like human???
  • 2 answers

Innocent Girl ?? 6 years, 2 months ago

Thnx Dev

Dev Sharma 6 years, 2 months ago

Multicellular organism like humans have complex body structure and large body size. This they bear specialized cells and tissues for performing various necessary functions of the body such as nutrition respiration transportation excretion and finally repriduction. So diffusion is not sufficient to meet the oxygen requirement for the multicellular organisms like human beings.
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