The Class of Cnidarians with the Most Conspicuous Medusa Stage

Question

The class of cnidarians with the most conspicuous medusa stage is
A)HydrozoA.
B)Scyphozoa.
C)Anthozoa.
D)Ctenophora.

Accepted Answer

Scyphozoa, or jellyfish, are the class of cnidarians with the most conspicuous medusa stage. They spend most of their life cycle in this stage, which is the free-swimming, umbrella-shaped form that we commonly associate with jellyfish. Hydrozoa and Anthozoa also have medusa stages, but they are less prominent compared to the medusa stage of Scyphozoa. Ctenophora, or comb jellies, are not cnidarians and do not have a medusa stage.