Answers

2015-08-11T11:21:08+05:30
in the procedure of diffusion a substance can move higher consolidation of efforts to the  lower consolidation of effort and spreads through cells to cells and reaches to the organs of the body but it takes much time for e.g. medicine and also by this process it is insufficient to meet the oxygen requirement of multicellular organisms also in the lungs carbon dioxide from capillaries is taken out and oxygen is filled .
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