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Is it true that dolphins respire through their lungs?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is true.
All living beings present on planet Earth need air to survive. Air contains oxygen and carbon dioxide, which are useful to plants and animals. Though aquatic animals breathe through gills, still some exceptions are there. Dolphins and whales respire through their lungs. They cannot breathe underwater like fishes as they do not have gills. They come to the surface of water regularly to take in air since they breathe with the help of their lungs. They breathe through blowholes that are located on the top of their heads.
 
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