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Which of the following cnidarian classes is made up of animals that live mostly in the medusa stage and have short-lived polyp stages?

A. Ctenidaria
B. Anthozoa
C. Hydrozoa
D. Scyphozoa

User Mads
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1 Answer

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the correct answer is Scyphozoa includes all (and only) the marine jellies, with about 200 known species. The medusa is the prominent stage in the life cycle, although there is a polyp stage in the life cycle of most species.
User Mauro Aguilar
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