Question

Flame cells of flatworms help in (i)$\quad$ osmoregulation $\quad$ (ii) $\quad$digestion$\quad$ $\quad$ (iii) $\quad$reproduction (iv)$\quad$excretion $\quad$ $\quad$ $\quad$(v)$\quad$bioluminescence

• A. (ii) only is correct
• B. (i) and (iv) are correct
• C. (iii) only is correct
• D. (i) and (v) are correct

Answer 1

Answer: (B)

(i) and (iv) are correct

Answer 2

Flame cells are ciliated cells that form part of the excretory and osmoregulatory system of platyhelminthes, rotifers, and nemertine worms. Fluid, containing water and nitrogenous waste products, diffuses into the flame cells and is directed through the tubules to the exterior by movements of the cilia, which resemble the flickering of flames