Subject: metabolism in autonomous arms of Linckia multifora

this is a followup of question 1054437934.Gb.  if each arm has its own stomach, 
doesn't the food therein contained fall out when the arm's disconnected?  can 
the arm (or any other part of the starfish body) metabolize itself?  that is, 
if an arm is disconnected and insufficient food is present in the gut, can the 
arm shrink and grow a disc (and other arms)?

Re: metabolism in autonomous arms of Linckia multifora