Colonial cnidarians that exhibit both the polyp stage and the medusa stage in their life cycles are:
A) hydrozoans.
B) scyphozoans.
C) cubozoans.
D) anthozoans.
E) bryozoans.

Question

Quizplus · Accepted Answer

Hydrozoans are the only colonial cnidarians that exhibit both the polyp stage and the medusa stage in their life cycles. Scyphozoans, cubozoans, and anthozoans only have a medusa or polyp stage, and bryozoans are not cnidarians.

Colonial Cnidarians That Exhibit Both the Polyp Stage and the Medusa