During a Zoology practical, the body wall of Hydra develops from ectoderm and endoderm with mesoglea between them. Select the most accurate identification.

Correct Answer: D

diploblastic organization

Cnidarians are diploblastic animals because they develop from two germ layers. The mesoglea lies between epidermis and gastrodermis but is not a true mesodermal layer. This MCQ belongs to the Cnidaria topic in Animal Diversity-I and is written to test concept understanding rather than memorized wording.