Kidney
nephridia
nephridia
Pair of nephridia in earthworm's segments excretes waste through pores in the skin, removing waste from the blood and body fluids.
In human body, the excretion is necessary.there are some organ which perform this function eg.Kidney which filter urea from blood,urea is a nitrogenous waste which is harmful for human body. There are some other organ which involve in excretion in invertebrate like malpighian tubles and in earthworm by nephridia.
nephridia
nephridia is the main excretory organ of annelida
There are several other names used when referring to nephridia. Some of these include metanephridium, protonephridia, and metanephridia. It is basically an invertebrate organ that performs similar functions as the kidney.
by antennary gland
1 locomotary organ of earthworm
Clitellum
The intestine.
The gizzard is the organ that helps the earthworm grind its food into a million pieces.