Multiple choice

Which of the following options possesses water vascular system?

  1. Arthropods

  2. Echinoderms

  3. Annelids

  4. Molluscs
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

 Amon these, echinoderms possess water vascular system.The system is composed of canals connecting numerous tube feet. Echinoderms move by alternately contracting muscles that force water into the tube feet, causing them to extend and push against the ground, then relaxing to allow the feet to retract.

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