Question Detail
Question
Which phylum uses a unique 'water vascular system' for locomotion, feeding, and respiration?
Correct Answer
Option B is the correct answer.
Detailed Explanation
Under 'Phylum Echinodermata (Spiny Skins)', it is stated: 'Unique system: Water vascular system for locomotion, feeding, respiration.'
Hint
This system is often associated with tube feet in organisms like starfish.