The central cavity of a sponge, through which water flows before exiting, is called the:
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Correct answer: Spongocoel
The spongocoel is the large central cavity of sponges. Water enters through numerous small pores (ostia) and eventually exits through the large opening known as the osculum.
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More Protista, Porifera, Cnidaria: Features questions
- Cnidarians are described as 'diploblastic' because their body develops from which two germ layers?
- The 'contractile vacuole' found in many freshwater Protists is primarily used for:
- Which canal system is the most complex and efficient in sponges, characterized by highly folded walls and flagellated chambers?
- Obelia is a classic example of a Cnidarian that exhibits 'Metagenesis.' What does this term refer to?
- Which of the following is a characteristic feature of the Phylum Porifera?
- The locomotory organelles of the Protist group Sarcodina are: