Question

By which process O2 and CO2 exchanges in cell? Define that process.​

Answer 1

Answer:

This process of exchange of O2 from the atmosphere with CO2 produced by the cells is called breathing, commonly known as respiration. ... Lower invertebrates like sponges, coelenterates, flatworms, etc., exchange O2 with CO2 by simple diffusion over their entire body surface.

Explanation:

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