a. Fats b. Protein d. none of the above 2. Fat: used during rest; a. Protein b. Fats : used for growth and repair c. carbohydrates d. all of the above 3. ATP: provides energy; Glycolytic system: a. Breakdown of glucose b. Conversion of ATP c. Krebs cycle d, organic compound 4. Glycolytic system: breakdown of glucose; Krebs cycle: a. Breakdown of glucose c. provides energy b. Conversion of ATP d. organic compoun 5. Aerobic exercises: Oxidative system; Anaerobic exercises: a. ATP alone c. Oxidative system b. ATP and Glycolytic system d. Oxidative system 6. Aerobic exercise: reduce heart attack; Anaerobic exercise: a. Reduce risk of diabetes c. helps lower blood press​