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Q.

Is it true that animals and plants in water use dissolved nitrogen for respiration?


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a

True

b

False 

answer is B.

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Detailed Solution

The above statement is false.
There is some dissolved air in the water of ponds, lakes, rivers, and oceans. As a result, animals, and plants that live in water breathe air dissolved in water (or respiration). The oxygen dissolved in water is used for breathing by aquatic animals and plants (or respiration). Aquatic species breathe using the oxygen dissolved in water. The bulk of aquatic species, such as fish and prawns, breathe through unique structures known as gills. Gills are epidermal projections that aid in the use of oxygen dissolved in water.
The correct statement would be, “Animals and plants in water use the dissolved oxygen for respiration”.
 
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Is it true that animals and plants in water use dissolved nitrogen for respiration?