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chapter 1-2-3-4
chapter 1-2
Question | Answer |
---|---|
homeostasis | the condition in which an organisms internal envoirment is kept stable |
adaptation | an inherited behavoir or physical feature changed for helping the animal |
vertebrate | the bones that make up the back bone |
invertebrate | a organism without a backbone |
tissue | a group of similar cells used to perform a function |
organ | a body structure that is composed of different kinds of tissues that work together |
radial symmerty | a body plan in which any number of imaginy lines all pass through to split it in equal halfs |
bilaterail symmerty | a organism with one line of symmerty |
cnidarian | |
mollusk | |
arthropod | |
exoskeleton | |
echinoderm | |
endoskeleton | |
chordate | |
notochord | |
vertebra | |
ectotherm | |
endotherm |