Answer:
Cells produce CO2 and use O2 thats why there is less oxygen in exhaled air bc cells used some and more CO2 bc body gets rid off extra CO2 like that
Explanation:
I hope I did't over complicate
A. Because saturated fatty acids are the ones with no double bonds
Answer:
the changes of become bigger
Explanation:
its important for us to mature so we dont stay small forever