Biradial symmetry and lack of cnidoblasts are the characteristics of:

Biradial symmetry and lack of cnidoblasts are the characteristics of:
  1. Hydra and starfish
  2. starfish and sea anemone
  3. Ctenoplana and Beroe
  4. Aurelia and Paramecium

Solution

Ctenoplana and Beroe lack cnidoblasts and have biradial symmetry. These belong to Phylum Ctenophora. Hydra, sea anemone and Aurelia are coelenterates which have cnidoblasts.

Asked in: NEET 2006

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