HELP PLS and i you dont answer all o it put it in the comments I just gonna get deleted

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 example would the nurse consider to be a part of systems thinking theory?

If a checkpoint detects damaged dna, the checkpoint may