AP BIOLOGY

Detailed explanation-1: -Malpighian tubules line the gut of some species of arthropods, such as bees. They are usually found in pairs in the posterior regions of arthropod alimentary canals; the number of tubules varies with the species of insect.

Detailed explanation-2: -The Malpighian tubule system is a type of excretory and osmoregulatory system found in some insects, myriapods, arachnids and tardigrades.

Detailed explanation-3: -Organs of excretion in arthropoda are malpighian tubules. They are slender tubes normally found in the posterior regions of alimentary canal at the junction of the midgut and hindgut.

Detailed explanation-4: -Malpighian tubules are the excretory organs in cockroach. It is a long coiled tubular structure which lies in the abdominal body cavity and empty into the junction between midgut and hindgut. It helps in excretion by absorbing the waste from haemolymph. Platyhelminthes has flame cells as organ of excretion.