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Drupady [299]
2 years ago
13

2. Oxygen is carried in the blood by the:

Biology
1 answer:
kkurt [141]2 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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2. The right answer is enzymes.
<span>The dark reactions (carbon cycle) act by the reduction of carbon dioxides (CO2) to the level of a carbohydrate (like fructose).
</span>
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4. The right answer is the Calvin cycle.
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3 0
3 years ago
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