Question

The excretory organs of flatworms (Platyhelminthes) are

• A. Flame cells
• B. Nephridia
• C. Malpighian tubules
• D. Renette glands

Answer 1

The correct option is A Flame cells

• The excretory organs of flatworms (Platyhelminthes) are flame cells and function like a kidney, removing waste materials.
• Nephridia remove metabolic wastes from an animal's body. They are present in annelids.
• The Malpighian tubule is a tubular excretory organ, a number of which open into the gut in insects and some other arthropods.
• Nematodes have a unique excretory system consisting, in simpler species, of one or two one-celled glands called renette cells. Thus, the correct answer is option A.