Can you ever have more individuals on a higher level in a food chain than a lower level? why?

What percentage of light hits earth's surface directly?

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

Organize the word parts according to where they appear in a medical term.