Question

Sepia and Octopus are molluscs which can move swiftly by means of

• A. Arms
• B. Lateral fins
• C. Suckers
• D. Jet propulsion through siphon

Answer 1

The correct option is D Jet propulsion through siphon

The soft body can rapidly alter its shape, enabling octopuses to squeeze through small gaps. They trail their eight appendages behind them as they swim. The siphon is used both for respiration and for locomotion, by expelling a jet of water.Hence, the correct option is (D)