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lesson 1 and 2


what is homeostatis keeping internal body conditions stable
what are adaptaions structures and behaviors that allow animals to preform their functions
what are vertebrates animals with a backbone
what are invertebrates animal without a backbone
what is a tissue a group of similar cells that preforms a specific function
what is an organ made up of different tissues
what is radical symmetry if many imaginary lines can be drawn through a central point to divide it into two mirror images
what is bilateral symmetry if only one line of symmetry can be drawn to divide it into halves that are mirror images
what are cnidarians Invertebrates that have stinging cells
what are mollusks invertebrates with soft, unsegmented bodies that are often protected by a hard shell
what are arthropods invertebrates that have hard outer coverings, segmented bodies and pairs of jointed appendages
what is the exoskeleton the outer covering
what is an echinoderm an invertebrate that has an internal skeleton and a system of fluid filled tubes
what is an endoskeleton an internal skeleton
Created by: PaigeHeppard