Question

write about the evolution of gaseous exchange in different organisms

Answer 1

Answer:

In animals, gas exchange follows the same general pattern as in plants. Oxygen and carbon dioxide move by diffusion across moist membranes. In simple animals, the exchange occurs directly with the environment. But with complex animals, such as mammals, the exchange occurs between the environment and the blood.

Explanation:

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Answer 2

☆Gaseous exchange☆

In the capillaries over the tissue, haemoglobin meets a very different environment. The tissue cells are continuously using oxygen, hence, the concentration of oxygen is quite low in them. It might be only one third of that in lungs . As the concentration of oxygen is low , oxyhaemoglobin release the oxygen molecule that entres the cells . In the reaction that occur within cells in our bodies,carbon dioxide and water are produced and energy is released to be used up for different purpose.