Which type of bone has the least amount of spongy bone relative to its total volume?

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

What is the primary function of the nervous system?

Which of the following is a period in the paleozoic era? devonian cambrian permian all of the above