Echinodermata (Sea urchins, sea stars, sea cucumbers, sea lilies) 3.0 / 5 based on 1 rating ? OtherLife on EarthUniversityNone Created by: MariaC5Created on: 26-04-18 20:55 Larvae Echinoderms display what kind of symmetry? Bilateral 1 of 20 Adult Echinoderms display what kind of symmetry? Pentaradially 2 of 20 Do echinoderms have a head? No 3 of 20 Motile echinoderms move equally well in all directions? True 4 of 20 What is the madreporite? A small pore where water enters the system 5 of 20 Do echinoderms have tube feet? Yes 6 of 20 Sea lilies are also known as Crinoids 7 of 20 What mode of life do crinoids have? Sessile 8 of 20 Feather stalks are a type of... Crinoid 9 of 20 Feather stars use their arms with feathery fringes for... Both 10 of 20 Sea urchins and sea cucumber are part of which major Echinodermata group? Echinozoans 11 of 20 Sea stars and brittle stars are part of what major group of Echinodermata? Anthozoans 12 of 20 Do Echinozoans have arms? No 13 of 20 In cross section Echinozoans look what shape in cross section? Circular 14 of 20 Are sea urchins covered in spines? Yes 15 of 20 What are sea urchin spines attached to? Substrate 16 of 20 What are spines in sea urchins used for? Locomotion 17 of 20 What do the arms of starfish house? The gonads and digestive organs 18 of 20 Do brittle starfish have flexible arms? Yes 19 of 20 What are brittle starfishes arms composed of? Jointed, hard plates 20 of 20
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