In time-lapse we see spaghetti worms extend their long tentacles out from their tubes to feed.
Annelids: Terrebellid, Spaghetti Worm
Next Generation Science Standards for this Video
Natural selection has produced numerous species of annelids adapted to a large variety of environmental conditions. Since the spaghetti worm is sedentary and lives in a tube attached to the ocean floor, it must stretch its tentacles out to gather food.