Which of the following is a waste product of an insect?

The waste product of an insect is uric acid. Insects, like all animals, need to get rid of waste products produced by their bodies. Insects do not have kidneys like humans, so they cannot excrete waste in the form of urine. Instead, they excrete waste in the form of solid uric acid crystals. These crystals are formed from the breakdown of nitrogenous waste products produced during the insect's metabolic processes. The uric acid crystals are then excreted from the insect's body through special structures called Malpighian tubules, which are located in the insect's digestive system. Therefore, uric acid is the waste product of an insect.