Multiple choice

Which of the following is/are not a characteristic feature of echinoderms?

  1. Spiny skin

  2. Water vascular system

  3. Radial symmetry

  4. Jointed legs
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

 Jointed legs are a characteristic feature of Arthropods. (the word ‘arthropod’ means ‘jointed legs’)

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