Question

Fill in the blanks: A more efficient cardiovascular system will produce a faster heart rate during aerobic activity, thus requiring ______work for the individual and producing. _____fatigue.

Answer 1

A more efficient cardiovascular system will require less work and produce less fatigue during aerobic activity.

Step-by-step explanation:

A more efficient cardiovascular system will produce a faster heart rate during aerobic activity, thus requiring less work for the individual and producing less fatigue.