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Question
Water vascular system is a characteristic of
Water vascular system is a characteristic of
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Solution
The correct option is D Echinodermata
The water vascular system can be defined as a hydraulic system used by echinoderms, e.g., sea stars and sea urchins, for locomotion, food and waste transportation, and respiration. The system is composed of canals connecting numerous tube feet. They 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. Hence, option D is correct.
The water vascular system can be defined as a hydraulic system used by echinoderms, e.g., sea stars and sea urchins, for locomotion, food and waste transportation, and respiration. The system is composed of canals connecting numerous tube feet. They 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. Hence, option D is correct.
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