Question

Intermediate between diploblastic and triploblastic body structure is found in

• A. Porifers
• B. Coelenterates
• C. Ctenophores
• D. Platyhelminthes

Answer 1

The correct option is C Ctenophores

Some animals are three layered with ectoderm, endoderm and mesoderm called triploblastic. Ctenophores have two main layers of cells that sandwich a middle layer of jelly-like material, which is called the mesoglea. So, even though the layers of tisse are diploblastic the presence of the third jelly-like layer gives them an intermediate stage.

So, the correct answer is 'Ctenophores'.