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Unique water vascular system is present in _______?

پانی کا انوکھا نظام _______ میں موجود ہے؟

Answer: Echinoderms

Explanation
  • Echinoderms (e.g., starfish, sea urchins) have a unique water vascular system used for movement, feeding, and respiration.
  • This system operates through a network of hydraulic canals and tube feet.
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