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
The answer is C. The strands are identical.
If you remove one light bulb in a series, the other will go out because a series only goes through one path of electricity
Hi there,
The answer to this question is
D. All of these
Changes in different temperature and acidity can change the function of a cell. Acidity and Temperatures are usually balanced for the cell function but one small change in one of them can throw off the cell of the pH levels.
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