Question

Which of the following is an example of Ctenophora?

• A. Beroe and Cestum
• B. Ctenoplana
• C. Pleurobrachia
• D. All of the above

Answer 1

The correct option is D All of the above

Ctenophora is a phylum of animals that live in marine waters. The outer surface bears usually eight comb rows. This is called as comb plates or swimming-plates, which are used for swimming. Ctenophora lack stinging nematocysts. Lasso cells are kind of defensive and offensive stinging cells. These are found in great numbers in all coelentrates. The Beroe or Melon jellyfish and flattened species likeCestum belongs toCtenophora.Ctenoplana is a genus of comb jellies andPleurobrachia is a common genus ofCtenophora.Thus, the correct answer is option D.