FLAME CELLS (for osmoregulation and excretion) are characteristic of:
APlatyhelminthes — flatworms; example Taenia (tapeworm), Fasciola (liver fluke)
BAnnelida
CMollusca
DEchinodermata
Answer & Solution
Correct answer: A. Platyhelminthes — flatworms; example Taenia (tapeworm), Fasciola (liver fluke)
Platyhelminthes use specialised flame cells (protonephridia) for osmoregulation and excretion. They are acoelomate, dorsoventrally flattened, mostly endoparasitic. Annelids use nephridia (different structure). Molluscs/Echinoderms have different systems.
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