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3 January, 09:11

What is the primary function of the respiratory system?

Question 5 options:

1)

Transportation of blood

2)

Oxygenate blood

3)

Absorption of nutrients

4)

None of the above

+4
Answers (1)
  1. 3 January, 10:42
    0
    Answer: 1

    Explanation: Oxygen moves in and carbon dioxide moves out of body.
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