3 years ago

2. Oxygen is carried in the blood by the:

Biology

1 answer:

kkurt [141]3 years ago

8 0

Answer:haemoglobin

Explanation:

Inside the air sacs, oxygen moves across paper-thin walls to tiny blood vessels called capillaries and into your blood. A protein called haemoglobin in the red blood cells then carries the oxygen around your body.

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