Question

Excretory organ of an annelid

• A. Green glad
• B. Flame cell
• C. Organ of Bojanus
• D. Nephridium

Answer 1

The correct option is D Nephridium

Excretory organ	Name of the organism
Green glands	It acts as the excretory organ in crustaceans. It is the subclass of kingdom arthropods.
Flame cells	It acts as the excretory organ in flatworms and which belongs to the kingdom Platyhelminthes.
Organ of Bojanus	These are the excretory glands that serve as function as of kidney. It is found in the kingdom Mollusca.
Nephridium	It occurs in the pair and performs the same function as that of vertebrate kidney. It is found in the kingdom Annelida.

So, the correct answer is 'Nephridium'.