Vertebrates - Organisms which have backbones., Reptiles - Organisms which have hard dry scales on their body surfaces., Adaptations - Organisms have special features to survive in their living environment., Habitats - Places or environments where the organisms live., Amphibians - Organisms which have moist skins., Mammals - Organisms which have milk glands., Microorganisms - Organisms which are very small and can be seen under microscope., Key - Can classify organisms in an orderly way,

Chapter 5

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