Which is the necessary part of respiration?
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in mammals lungs are the necessary part for respiration
in fish gills
in frogs lungs and skin
in cockroach spiracles
in fish gills
in frogs lungs and skin
in cockroach spiracles
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The answer is lung.
Lung is the necessary part of respiration. A human body has two lungs to assist in the respiration process. They help to take in oxygen when breathing and flush out carbon dioxide from the body along with the air that is expelled.
The lung is one of the biggest organs of the human body.
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