Question

Metameric segmentation is the characteristic of

• A. Mollusca and Chordata
• B. Platyhelminthes and Arthropoda
• C. Echinodermata and Annelida
• D. Annelida and Arthropoda

Answer 1

The correct option is D Annelida and Arthropoda

When the bodies of organisms are made up of segments and the segments are similar to each other, this type of segmentation is called as metameric segmentation. Annelid worms and arthropods exhibit metameric segmentation whereas chordates have heteromeric segmentation. Platyhelminthes have pseudometameric segmentation whereas Mollusca lack segmentation.

So, the correct answer is 'Annelida and Arthropoda'