Multiple choice

Echinodermata is a group of animals which are :

  1. coelomate, horny, marine.

  2. coelomate, spiny, marine

  3. acoelomate, spiny, fresh water

  4. joint legged, marine
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Echinodermates are totally marine, triploblastic, unsegmented and coelomate. Coelom is enterocoel. Larval stage is bilateral and adult is radial in symmetry. In echinodermates short and stout spines are present on the aboral surface which are blunt, immovable and calcareous. 

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