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Question

Water vascular system is a characteristic of

A
Echinodermata
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B
Mollusca
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C
Annelida
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D
Arthropoda
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Solution

The correct option is A Echinodermata
Water vascular system is a characteristic of phylum Echinodermata. The water vascular system consists of numerous tube feet interconnected with canals. 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. Water vascular system performs various functions in echinoderms such as locomotion, food and waste transportation, and respiration.
So, the correct answer is 'Echinodermata'.

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