Question

Fatigue in muscles occurs due to

a. aerobic respiration

b. anaerobic respiration

c. anaerobic fermentation

d. breathing​

Answer 1

Answer:

b

Explanation:

Anaerobic Respiration is your answer.

Answer 2

$\sf{⟹}$b. anaerobic respiration

★$\rm\pink{ \ Explanation \ :- }$

• The anaerobic respiration leads to formation of lactic acid in muscles.

• This lactic acid accumulates in the muscle tissue which reduces the pH, making it more acidic and producing the stinging feeling in muscles when exercising.

• Here , stinging feeling in muscles is fatigue.