Unit #5 Quiz #3 Grade: «grade» Subject: «subject» Date: «date»

1The root terms for Arthro-pod means: A joint foot B large claw C foot club D joint head

2The animal in the following pictures represents ___________. A asymmetry B radial symmetry C bilateral symmetry D hexamerism

3Which of the following is used to walk across the benthic zone in search of food: A B C D

4Crustaceans have which type of skeleton: A endoskeleton B exoskeleton C hydrostatic skeleton D axial skeleton

5The name for the circulatory organ that pumps fluid throughout a crustacean is know as a(an): A hemo heart pump B blood lymph pump C hemolymph pump D heart

6Why do sea urchins have the longest tube feet of all echinoderms? A They need long tube feet to reach beyond or between their protective spines B The need the long tube feet to reach food from their most anterior end to their most posterior end to feed C They use these long tube feet to help open and close their shell- crushing teeth D They use these long tube feet to open the shells of the strongest bivalves

7Which of the following is used to make a quick escape & fling substrate at a threat: A B C D

8One advantage of a complete digestive system over an incomplete digestive system is that an organism with a complete system: A Must pause to eject waste through its mouth prior to eating a food source larger than its’ GVC B Can continue to consume food without having to eject that food through the same orifice that it is consuming food C Must input food through multiple orifices while ejecting waste out of similar orifices D An organism can simply diffuse nutrients through the thin tissues surrounding the organism

9Echinoderms have which type of skeleton: A endoskeleton B exoskeleton C hydrostatic skeleton D axial skeleton

10The terminal end of the excretory system found within most crustaceans is located on the: A Ventral portion B Posterior portion C Dorsal postion D Anterior portion

11The animal in the following pictures represents _________. A asymmetry B radial symmetry C bilateral symmetry D hexamerism

12You reach into a tank and poke a brittle star fish. It responds by quickly moving under a nearby rock and curling into a ball. The brittle star responded to your touch because of which of the following receptors: A Photoreceptor B Chemoreceptor C Statocyst D Thigmoreceptor

13What chemical makes up the endoskeleton of echinoderms? A Chitin B Spicules C Spongin D Calcium carbonate

14Tube feet found within an echinoderm are responsible for all of the following EXCEPT: A Feeding B Secreting digestive enzymes C Locomotion D Absorbing dissolved oxygen

15The water vascular system found within echinoderms is an evolutionary precursor to which of the following systems: A Endocrine system found within humans B Excretory system found within humans C Cardiovascular system found in humans D Respiratory system found within humans