Question

from Which of the following evidence suggest that the molluscs have descended from the annelids?

• A. The living fossil Neopilina, shows metameric segmentation
• B. A larval stage of molluscs called Trochophore larva has structural similarity with annelid trochophore larva
• C. Molluscs do not have a segmented body
• D. Both (1) and (2)

Answer 1

The correct option is A The living fossil Neopilina, shows metameric segmentation

• Here, option (D) is correct beacuse :
• Neopilina - ‘a living fossil’, shows metameric segmentation.
• Besides, its trochophore larva has structural similarities to annelid trochophore larva.These two evidences,suggest that molluscs have descended from annelids.