Answer:
In earthworm, the excretory organ is made up of ciliated tubule while in mammals there is no ciliated tubule. ... In earthworm, it has one pair of nephridia in each segment while in mammals, their nephrons are not segmentally arranged.
Organs of excretion make up the excretory system. They include the kidneys, large intestine, liver, skin, and lungs. The kidneys filter blood and form urine. They are part of the urinary system, which also includes the ureters, bladder, and urethra.
Earthworms have a pair of excretory organs called nephridia in almost all segments. They excrete the waste (essentially urine) through a pair of pores in each segment. The excretory organs of insects are called Malpighian tubules (named after an early invertebrate anatomist).differences
*excretory system of earthworm has nephrostome and nephridiophore but mammal excretory system dosen't have
*In earthworm, the excretory organ is made up of ciliated tubule while in mammals there is no ciliated tubule. * In earthworm, it has one pair of nephridia in each segment while in mammals, their nephrons are not segmentally arranged.
simlarities
*Each is well supplied with blood.
*Each is made up of a complex network of coiled tubes or tubules.
*Both excrete urea or nitrogenous and water.
*Both have structures for filtering excretory products.