The number of mitochondria in a cell depends on the needs of the cell. a cell that needs a lot of energy will have an increased number of mitochondria, in comparison to a cell that uses less energy. what type of cell would likely have the most mitochondria?

Ineed to know why d is the correct answer asap

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 is one example of a phenotypic change that is not genetic