Question

Internal segmentation is present in molluscs belonging to class

• A. Monoplacophora
• B. Polyplacophora
• C. Gastropoda
• D. Scaphopoda

Answer 1

The correct option is A Monoplacophora

In molluscs, most of the time body is unsegmented but distinct in head, muscular foot, visceral mass/ hump but internal organs are unsegmented.

But in monoplacophora also called as living fossil is segmented, Neopilina is an example of class Monoplacophora with segmented internal organs.

So, the correct answer is (A)