MCQ
Path of water in a sponge is
- ADermal ostia $ \to $ Gastral ostia $ \to $Osculum
- ✓Dermal ostia $ \to $ Gastral ostia $ \to $ Spongocoel $ \to $ Osculum
- COsculum $ \to $ Spongocoel $ \to $ Choanocytes $ \to $ Ostia
- DPinacocytes $ \to $ Choanocytes $ \to $ Enteron $ \to $ Osculum