Question

if a runner is doing vigorous exercise, which results from the anaerobic cellular process? accumulation of lactic acid accumulation of oxygen depletion of ethanol depletion of carbon dioxide

Explanation:

During anaerobic cellular respiration in humans (such as during vigorous exercise by a runner), glucose is broken - down without sufficient oxygen. This process leads to the production and accumulation of lactic acid. Oxygen is consumed rather than accumulated, and ethanol is not produced in human anaerobic respiration. Carbon dioxide is not depleted; in fact, some is produced in other metabolic processes.

Answer:

accumulation of lactic acid