21. Fishes & Mollusks

Multiple Choice Questions and Trivia on Fishes & Molluscs in Biology. Objective Biology Questions on Fishes & Molluscs for AP Biology, SSC, PCS, UPSC, NEET, CBSE /UGC NET, CSIR NET, Class IX, X, XI and XII Students.

Which among the following fishes does not have Central Nervous System?
Which among following is not a Fish?
Which among the following is a Mollusc?
Biologists have been able to demonstrate the hearing and sound sensory mechanism through the acoustico-lateralis system in which of the following vertebrates ?
What class does octopus belong to?

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