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Which step is a part of internal respiration?


Oxygen rich blood is taken up by the tissues.

Air is inhaled through the nostrils.

Air is exhaled through the nostrils.

Gaseous exchange of oxygen and carbon dioxide occurs at the alveoli.

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Answer:

oxygen rich blood is taken up by the tissue s

Explanation:

the first exchange gasses between bloodstream and tissue

the second is cellular respiration which helps to perform the metabolic function

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