Basis of Animal Classification · NCERT Biology

Choose the correct match regarding symmetry:

  1. Sponges - Always bilateral
  2. Ctenophores - Radial
  3. Adult Echinoderms - Bilateral
  4. Annelids - Radial
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Correct answer: Ctenophores - Radial

Ctenophores (comb jellies) exhibit radial symmetry. Sponges are mostly asymmetrical, adult echinoderms are pentamerous radial, and annelids are bilateral.

Difficulty: Medium Question 16 of 20

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