Multiple choice

Which of the following statements is true about cnidarians that exhibit metagenesis?

  1. Polyps produce medusae asexually and medusae form the polyps sexually.

  2. Polyps produce medusae asexually as well as sexually.

  3. Medusae form the polyps sexually as well as asexually but polyps produce medusae only asexually.

  4. Polyps form the medusae sexually as well as asexually but medusae produce polyps only asexually.

  5. Medusae produce polyps asexually and polyps form the medusae sexually.
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A Correct answer
Explanation

Those cnidarians which exist in both forms exhibit alternation of generation, known as Metagenesis, i.e. polyps produce medusae asexually and medusae form the polyps sexually (e.g. Obelia).

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