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RRB Group D 3-Dec-2018 Shift 3 Solved Paper
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© examsnet.com
Question : 6
Total: 100
The ‘Water-Vascular’ system is found in :
sea-horse
sea-pen
sea-anemone
sea-cucumber
Validate
Solution:
The water vascular system is found in sea-cucumber. Sea cucumbers possess both a water vascular system that provides hydraulic pressure to the tentacles and tube feet, allowing them to move, and a haemal system.
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