Write on the essay of the following (1) Malpighian tubules (2) Nitrogenous wastes such as ammonia,uric acid, and urine

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1) Malpighian tubules
Malpighian tubules are the primary excretory and osmoregulatory organs found in insects, myriapods, and arachnids. These tubules absorb solutes, water, and nitrogenous wastes from the hemolymph, which is the insect's circulatory fluid. The collected substances are then transported to the hindgut, where useful compounds are reabsorbed and the remaining waste is excreted, helping the organism maintain water balance and eliminate metabolic byproducts.

2) Nitrogenous wastes such as ammonia, uric acid, and urea
Nitrogenous wastes are toxic byproducts of protein and nucleic acid metabolism that must be eliminated from the body. The main forms are ammonia, urea, and uric acid, with the choice of excretion strategy depending on an animal's water availability. Ammonia is highly toxic and requires large amounts of water for dilution, typically excreted by aquatic animals. Urea is less toxic than ammonia and requires less water, common in mammals and amphibians. Uric acid is the least toxic and requires minimal water, excreted as a semi-solid paste by birds, reptiles, and insects.