Animal Kingdom Question 989
Question: Path of water in a sponge is [CPMT 1984]
Options:
A) Dermal ostia $ \to $ Gastral ostia $ \to $ Osculum
B) Dermal ostia $ \to $ Gastral ostia $ \to $ Spongocoel $ \to $ Osculum
C) Osculum $ \to $ Spongocoel $ \to $ Choanocytes $ \to $ Ostia
D) Pinacocytes $ \to $ Choanocytes $ \to $ Enteron $ \to $ Osculum
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Answer:
Correct Answer: B
Solution:
The course taken by water into the canal system is.
water from outside $ \underset{\text{dermal ostia}}{\mathop{\xrightarrow{through}}}\, $ incurrent canals $ \underset{prosopyles}{\mathop{\xrightarrow{through}}}\, $ radial canals $ \underset{apopyles}{\mathop{\xrightarrow{through}}}\, $ spongocoel $ \underset{osculum}{\mathop{\xrightarrow{through}}}\, $ outside.
BETA
