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Which of the following is a characteristic feature of echinoderms? (2021)

Practice Questions

Q1
Which of the following is a characteristic feature of echinoderms? (2021)
  1. Bilateral symmetry
  2. Water vascular system
  3. Exoskeleton made of chitin
  4. Presence of feathers

Questions & Step-by-Step Solutions

Which of the following is a characteristic feature of echinoderms? (2021)
  • Step 1: Understand what echinoderms are. They are a group of marine animals that include starfish, sea urchins, and sea cucumbers.
  • Step 2: Identify a key feature of echinoderms. One important characteristic is their water vascular system.
  • Step 3: Learn what the water vascular system does. It helps echinoderms move and feed by using water pressure.
  • Step 4: Recognize that this feature is unique to echinoderms and distinguishes them from other animals.
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