B. Density has been decreased Or D.
Approximately one billion oxygen molecules. that is because there are about 250 million molecules of haemoglobin in each cell, and each haemoglobin molecule binds to 4 oxygen molecules
Answer:
The results are not able to be reproduced.
Explanation:
Generally, if an experiment is done and the results/similar results can not be reproduced then it can be considered invalid.
<span>Treatment can help but the condition can't be cured</span>
I believe it’s C! I’m not sure but i think it might be c.