Explain why carbon dioxide is constantly given off during the Krebs cycle.

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

How do living things obtain phosphorus

Which step is not included in the step approach to calculating the greatest common divisor?