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Zoo Unit 5

Zoo Unit 5 Echinoderms

QuestionAnswer
asteroidea class of echinoderm including sea stars
ophiuroidea class of echinoderm including brittle stars
holothuroidea class of echinoderm including sea cucumbers
echinoidea class of echinoderm including sea urchins and sand dollars
crinoidea class of echinoderm including sea lilies
echinoderm phylum of animals including animals with spiny skin, internal skeleton of calcium carbonate, and a water vascular system
ossicles calcium carbonate plates that make up the internal skeleton of echinoderms
tube feet organ of locomotion by many echinoderms; filled with water and end with a sucker
madreporite porous plate that acts as a pressure valve to regulate flow of sea water through the body of the echinoderm
dioecious when male and female body forms are within the organism; such as in most echinoderms
regeneration how some echinoderms reproduce asexually by regrowing lost parts
five average number of arms in a sea star
crown of thorns species of sea star known for destroying coral reefs
detritivore feed on dead organisms
evisceration process of expelling internal organs ; used to evade predators in sea cucumbers
sea lily common name for a class of echinoderms that filter feeds
sea urchin member of class echinoidea known for destroying kelp forests
Aritsotles lantern chewing organ with teeth; found in sea urchins
radial type of symmetry in adult echinoderms
stone canal carries water from the madreporite to the central canal
ring canal carries water from the stone canal to the radial canal
radial canal carries water from the ring canal to the tube foot
ampulla enlarged bulb at the top of the tube foot
podium the slender part of the tube foot with a sucker at the bottom
digestive gland break down and absorb nutrients for the echinoderm
aboral side opposite the mouth
oral side the same side as the mouth
mouth found in the center of the oral surface
anus found in the center of the aboral surface
Created by: Mrs. Meeks SHS
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