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ch4 lesson3

ch4 lesson 3

QuestionAnswer
exoskeleton An outer skeleton
Endoskeleton AN internal skeleton
Definition of an invertebrate Animals that do not have backbones
8 main groups of invertebrate Sponges, cnidarians, flatworms, roundworms, segmented worms, mollusks, arthropods, echinoderms
Characteristics of invertebrate groups and examples Spongues are asymmetrical invertebrates-sponge Cnidarians that have stinging cells and take food into a central body cavity -jellyfish Flatworms-bilateral symmetry, 2 way digestive system-flatworm roundworms-smooth, thin tubes segmented worms-bodies m
Characteristics of invertebrate groups mollusks have soft unsegmented bodies with a hard shell-seashells Arthropods have hard outer coverings, and jointed appendages-spiders Echinoderms is an invertebrate that has internal skeleton and fluid filled tubes--sea cucumbers
Created by: user-1984978
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