PLEASE HELP plz ignore the one I choose bc it’s probably wrong

To maintain asepsis when administering an injection, all parts of the syringe can be handled except the:

The image below shows a common blood pressure gauge. what does this device do? a. measures the level of oxygen present in the blood b. measures the pressure of blood when the lungs expand and compress c. measures the electrical activity of the heart d. measures the pressure of blood when the heart contracts and relaxes

Which organelle breaks down sugar molecules that supply energy to the cell ?