I think it’s A B and C because other sloths are alive and so are trees.
Answer:
The answer is autotrophs
Explanation:
During the early days of the Earths life there was no oxygen but there was plenty of CO2 which the autotrophs took and used as food while discarding the excess which was the oxygen.
One: The cell is able to move material in and out of the cell
Two: It helps the cell maintain necessary conditions for life
The antigens that are on the blood A antigens, B antigens and the Rh if it is a positive or negative
