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chaper 3-4

cnidarian a radial invertebrate that uses stinging cells
mollusk a invertebrate with soft skin and unsegmented bodys
arthropod an invertebrate that has a external skeleton,and segmented body
exoskeleton external skeleton
echinoderm a radial invertebrate that has a internal skeleton and fluid systems
endoskeleton internal skeleton
chordate an animal that has a notochord
notochord a flexible rod that replaces the backbone
vertabra the bones used to make up a backbone
ectotherm a animal whose body heat is little to none so it depends on the envoirment
endotherm a animal whose body temperature is made by them selves but is effected by the envoirment
Created by: timmygabriel