Which one of the following is a true fish as per the biological system of classification?

A Silverfish
B Jellyfish
C Cuttlefish
D Flying fish

Correct Answer: Flying fish

Cuttlefish or cuttles are marine animals of the order Sepiida. They belong to the class Cephalopoda, which also includes squid, octopuses, and nautiluses. Cuttlefish have a unique internal shell, the cuttlebone. Despite their name, cuttlefish are not fish but molluscs.

Jellyfish are soft bodied, free-swimming aquatic animals with a gelatinous umbrella-shaped bell and trailing tentacles.

 

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