Q46 of 367 Page 47

Explain how, it would benefit deep sea divers if humans also had gills.

If humans also had gills, deep sea divers could remain under the sea for a longer time without using oxygen cylinders as gills would extract the oxygen, dissolved in water, for breathing.


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Name the energy currency in the living organisms. When and where is it produced?

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Explain why, plants have low energy needs as compared to animals.

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What is the function of the respiratory system?

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What are the major organs of respiratory system in man (or humans)?