The __________ are found on the oral surface of the arms of the sea star and house the tube feet.
A)pedicellariae
B)ambulacral grooves
C)Polian vesicles
D)lateral canals
E)Tiedemann's bodies

Question

Quizplus · Accepted Answer

The ambulacral grooves are found on the oral surface of the arms of a sea star and house the tube feet, which the sea star uses for movement and feeding. Pedicellariae are small pincer-like structures for defense, Polian vesicles are part of the water vascular system, and lateral canals and Tiedemann's bodies are also part of the water vascular system but not directly related to the arm structures.

The __________ Are Found on the Oral Surface of the Arms