19Aerobic Anaerobic RespirationEasy1 markThe heart rate in humans remains high for a period of time after exercise. Which statement explains why?ACarbon dioxide needs to be transported from the lungs to the liver.BGlucose needs to be transported from the muscles to the liver.CLactic acid needs to be transported from the muscles to the liver.DOxygen needs to be transported from the liver to the lungs.Grade answerGrading criteria