If you exercise with enough intensity that the blood ph is changed, you have exceeded the
select one:
a. aerobic threshold
b. acidity point
c. base point
d. ph threshold
e. anaerobic threshold

The correct answer is; e. anaerobic threshold  

Explanation:

The Anaerobic Threshold (also called Lactate Threshold) is a period during exercise in which there is increased buildup of lactic acid levels within the muscles. This mechanism usually occurs when exercising with increased intensity during which anaerobic energy is highly produced than aerobic processes. This physiological mechanism causes an increase in the acidity of the muscle cells and influences the blood PH along with other metabolites in the body.

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