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Animal Kingdom question

2006 · Q32
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Animal Kingdom question

2006 · Q32

NEETBiologyAnimal KingdomMCQ+4 / −1
Biradial symmetry and lack of cnidoblasts are the characteristic of
  1. A
    Hydra and starfish
  2. B
    starfish and sea anemone
  3. C
    Ctenoplana and Beroe
  4. D
    Aurelia and Paramecium.
View written solutionFree

Correct answer: C

Ctenophora is a small phylum of exclusively marine, invertebrate animals. Ctenoplana and Beroe are examples of ctenophora. They have biradial symmetry (a combination of radial and bilateral symmetries).

They lack the specialized stinging cells (nematocysts) found in coelenterates, but one species (Haeckelia rubra) incorporates those of its jellyfish prey for its own defense.

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