A) locomotion
B) excretory system
C) respiratory system
D) reproductive system
Correct Answer: A
Solution :
Tube feet are locomotary organs of echinoderms consisting of elongated out growths of the body wall, able to be protruted or retracted by alternation of fluid pressure in the water vascular system. In star fish they are arranged in rows in ambulacral groove.You need to login to perform this action.
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