Which statement best distinguishes the difference between placozoans and scyphozoans?

Question

Quizplus · Accepted Answer

The main distinguishing feature between placozoans and scyphozoans is the presence of a mouth and gut in adult scyphozoans, while adult placozoans lack these structures. Placozoans are also typically smaller and have a mobile, pelagic life stage, but these are not distinguishing features in comparison to scyphozoans. Additionally, both placozoans and scyphozoans can reproduce both sexually and asexually, making option E incorrect. Option A is also incorrect, as adult scyphozoans exhibit radial symmetry. Option D is incorrect because adult size varies greatly within both groups.

Which Statement Best Distinguishes the Difference Between Placozoans and Scyphozoans