All of the following coelenterates show alternation of generation except:
Correct answer: A. Hydra
- A. Hydra
- B. Obelia
- C. Aurelia
- D. All of these
Explanation
Metagenesis or alternation between polyp and medusa forms is a characteristic feature of phylum cnidaria. However, hydra exists only as a polyp and does not exhibit metagenesis.
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