SSC CGL 2023 PYQ — Question 37

The correct answer is Option 2 i.e. Flame cells.

In platyhelminthes, osmoregulation is primarily facilitated by specialized cells called flame cells or protonephridia. These cells are part of the excretory system and function to maintain water balance and remove metabolic waste. Flame cells have cilia that beat to create a current, drawing excess water and waste into a network of tubules. The filtered fluid is then expelled from the body through pores, helping the organism regulate its internal environment, especially in freshwater habitats.