Will humans be able to breathe if they would have spiracles and air tubes for breathing instead of lungs? Explain.

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Solution

No, humans will not be able to breathe without lungs. Lungs are the primary organs of respiration in humans and this cannot be replaced by other structures like spiracles. Lungs play a pivotal role in distributing oxygen (which comes with the air inhaled) to every cell of the body.

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If Earthworms breaths with their moist skin,and if there skin becomes dry they die.Will they be able to breath inwater or they will die?

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