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NEETBotanyAnimal Kingdom

Type of skeleton Phylum A. Spicules or spongin fibers 1. Cnidarians B. Calcium carbonate 2. Sponges C. No distinct skeleton 3. Ctenophores D. No skeleton mentioned 4. Platyhelminthes

Options

  1. AA - 2, B - 1, C - 3, D - 4
  2. BA - 1, B - 2, C - 3, D - 4
  3. CA - 4, B - 1, C - 2, D - 3
  4. DA - 4, B - 1, C - 3, D - 2

Correct answer

A. A - 2, B - 1, C - 3, D - 4

Step-by-step solution

Sponges have skeletons made of spicules or spongin fibers. Cnidarians, like corals, have skeletons of calcium carbonate. Ctenophores have no skeleton. Platyhelminthes do not have a distinct skeleton mentioned.

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