What is one way to develop a higher degree of fitness?

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

Movimento corporal andar, musculos planos e eixos

Which best example explains the surface tension of water