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In decision trees, time:

29. When using the RQ to estimate fuel usage during exercise, the role that protein plays as a fuel source is often ignored. Why? 

The principal means of heat loss at rest in a cool indoor environment (20℃/low humidity) is via

T or F: Systole represents the portion of the cardiac cycle where 100% of blood is ejected from the left ventricle.

38. The estimated oxygen requirement of treadmill walking can be calculated as follows: VO2 (ml/kg/min) = 0.1 ml/kg/min x speed (m/min) + 3.5 ml/kg/min How many METs are required for a person walking at 107 m/min?

The decrease in maximal heart rate with age in adults can be estimated via

T or F: Pre-cooling the body before performing prolonged exercise in a hot and humid environment has been shown to significantly improve performance.

The Golgi tendon organs monitor 

18. Some cells communicate by cell-to-cell contact. This type of signaling

Match the term with the best answer.