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Few cnidarians like corals have a skeleton composed of

A. calcium hydroxide

B. calcium sulphate

C. calcium carbonate

D. sodium bicarbonate

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  13. Which one of the following statement regarding coelom of given animals is correct?
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  18. Which of the following statement(s) is/are correct regarding phylum coelenterata?(i) They are aquatic,…
  19. Match the phylum given in column - I with their example given in column - II and choose the correct…
  20. Match the organisms given in column-I with their common name given in column-II and choose the correct…
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  29. Match the phylum given in column - I with the special features present in them given in column - II…
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