What is aneoberic respirition and does it occur in a human dody also?

Basically, anaerobic respiration is the breakdown of food substances in the absence of oxygen to release very minimum amount of energy.

It also occurs in the human body. In aerobic respiration, carbon dioxide and water are also released along with huge amount of energy but in anaerobic respiration, alcohol is released along with energy in yeast and plants; and lactic acid is released along with energy in animals (including humans).