Water vascular system is a characteristic feature of ______?

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Water vascular system is a characteristic feature of ______? Answer: Echinodermata

The water vascular system is a characteristic feature of the Echinodermata phylum, which includes marine animals like starfish, sea urchins, and sea cucumbers. This hydraulic system is crucial for echinoderms, serving functions such as locomotion, respiration, and the transport of food and waste.

Question context

This question is part of 🔬 General Science within the broader 🌐 Current Affairs & GK subject and appears in the SPSC – Sindh Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.