Breakdown of dead/decomposing materials into ammonia?

Breakdown of dead materials into ammonia occurs due to decomposers.

Explanation:

Decomposers are the organisms which are responsible for the breakdown of dead bodies of plants and animals produces ammonia by consuming the nitrogen present in that dead body of plant and animals through the process of ammonification. The ammonium produced is then converted into nitrates by the nitrifying bacteria and this nitrates is used by the plants for making amino acids and enzymes.

A. his muscles will undergo anaerobic respiration

anaerobic respiration means that there is not enough oxygen going through the blood into the muscles and the body has to respirate through other things such as lactic acid buildup. this respiration is most suitable for short, intense workouts because your body cannot thrive on anaerobic respiration for too long