Question

Why is diffusion insufficient to meet the oxygen requirement of multicellular organisams like humans​ ?

Answer 1

Answer:

because of following reason.

1. diffusion is very slow process and our body is quite large contains trillions of cell.

2. at least 3 year taken by diffusion to meet the oxygen requirement in body.

3. So our special organ Rbc ( haeemoglobin) which carry oxygen from outside to reach each and every cell.

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Answer 2

Answer:

Ji aab harami ka zamana aagya