Question

Excretion in most annelids take place by

• A. Kidneys
• B. Flame cells
• C. Nephridia
• D. Both B and C

Answer 1

Answer: (C)

Nephridia

Flatworms have special excretory organs which are known as flame cells which help to excrete metabolic waste by constant beating of cilia. The nephridia is an invertebrate organ present in annelids which occur in pairs and performs a function similar to the vertebrate kidney. Nephridia remove metabolic wastes from an animal's body. So, the correct answer is option C.