The flame cells help in _____ and _____.

Flame cells:

1. Flame cells are excretory organs found in the Phylum Platyhelminthes (flatworms).
2. The flame cells act as a kidney, filtering out waste.
3. Protonephridia are clusters of flame cells.
4. The flame cells serve to maintain the organism's ionic equilibrium by regulating osmotic pressure.

Final answer: The flame cells help in excretion and osmoregulation.