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NTA Abhyas NEET2020BotanyAnimal KingdomPractice

Which of the following characters stands true for Antedon ?

Options

  1. ASpiny-bodied and organ level of organisation
  2. BMouth on the dorsal side and anus on the ventral side
  3. CExclusively marine and triploblastic
  4. DHas a pseudocoelom

Correct answer

C. Exclusively marine and triploblastic

Step-by-step solution

Antedon or sea lily belongs to the phylum Echinodermata. All are marine with an organ-system level of organisation. The adult echinoderms are radially symmetrical but larvae are bilaterally symmetrical. They are triploblastic and coelomate animals. The digestive system is complete with the mouth on the lower (ventral) side and anus on the upper (dorsal) side.

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