If a person is injured and has type AB blood, what type(s) of blood would the doctor be able to give them in order to keep them alive?

The oxidizing agent our bodies use to obtain energy from food is oxygen (from the air). if you breathe 15 times a minute (at rest), taking in and exhaling 0.5 l of air with each breath, what volume of air do you breathe each day? air is 21% oxygen by volume. what volume of oxygen do you breathe each day?

What is a codon and where is it found

Cells destroy body cells infected by a virus or bacteria.