Excretory system in arthropods is composed of:

Explanation

The excretory system in arthropods is composed of specialized structures called Malpighian tubules. These tubules are the primary organs responsible for excretion and osmoregulation in arthropods, including insects, spiders, and other related groups. Malpighian tubules are long, slender tubes located in the abdominal region of arthropods, typically near the junction of the midgut and hindgut. These tubules are involved in the removal of metabolic wastes, such as nitrogenous compounds (e.g., ammonia, uric acid), from the hemolymph (the arthropod equivalent of blood).