If a person's goal is to increase his or her overall fitness, which is the most important factor: the specific aerobic exercise a person does or the intensity of the exercise? Defend your response. Explain how one remains properly hydrated during exercise and why it is important.

Which of the following is a characteristic shared by both electron and light microscopes? a. they both employ the use of objective lenses. b. both microscopes require an internal camera to visualize the specimen. c. both microscopes have a resolving power of 0.01 nm. d. they both utilize white light to magnify the specimen.