MCQ
In sycon, which pathway is correct for water circulation into body?
- ✓Ostia $\rightarrow$ spongocoel $\rightarrow$ osculum
- BOsculum $\rightarrow$ spongocoel $\rightarrow$ ostia
- COstia $\rightarrow$ Osculum $\rightarrow$ Spongocoel
- DSpongocoel $\rightarrow$ Osculum $\rightarrow$ Ostia