Arrange the order in which oxygen enters the body and reaches the blood capillaries.

Nostrils

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Windpipe

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Bronchioles

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Alveoli

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Blood capillary

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Solution

The air enters the body through the nostrils and passes through the windpipe, bronchioles and enters the alveoli. The oxygen from alveoli diffuses into the capillary. Now the oxygen in the lungs will be transported to all parts of the body.

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