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.
1/4 - 25%
3/4 - 75%
4/4- 100%
2/4 - 50%
Explanation:
4 can be used like money 1/4 is 1 quarter out of a dollar which is 25 cents and so on.
Answer/explanation:
Humans started out by walking on fours and had lots of hair and that is the same as horses so that is why
Prokaryotic chromosomes are found in the nucleoid of prokaryotic cells, and they are circular in shape
Single cells divided twice and produces four cells. these cells are sex cells.
