Question

बहुकोशिकीय जीवो में ऑक्सीजन की आवश्यकता विसरण द्वारा क्यों नहीं पूरी हो पाती है?

Answer 1

Answer:

in multicellular organisms the supply of oxygen cannot be fulfilled by diffusion because it may take about three years to reach oxygen and food to reach our toes.

the supply of oxygen can be fulfilled in unicellular animals like amoeba.

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