Multiple choice The means of respiration in the echinodermata is/are _________. gills papulae tuft-like gills tracheal gill Reveal answer Fill a bubble to check yourself B Correct answer Explanation Respiration in the echinodermata (starfish and sea urchins) is carried out using a very primitive version of gills called papulae. These thin protuberances on the surface of the body contain diverticula of the water vascular system.