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Ch. 4.3

Ajani Chapter 4.1

TermDefinition
Exoskeloton a outer skeleton that is shed as the animal grows
Endoskeleton an inner skeleton that grows with the animal
Share the basic definition of an invertebrate an animal tat doesn't have a backbone
list the 8 main groups of invertebrates Sponges, cnidarians, flatworms, roundworms, segmented worms, mollusks, arthropods, and echinoderms
Name the characteristics of sponges Asymmetrical, cells only, and stays in one place
Name the characteristics of cnidarians Stinging cells, takes food in central cavity, and has tissue
Name the characteristics of flatworms flat soft bodies, eyespots that detect light
Name the characteristics of roundworms smooth thin tube-like bodies and has a mouth and anus,
Name the characteristics of segmented worms segmented bodies, brain
Name the characteristics of mollusks soft unsegmented bodies protected by a shell, has a mantle, organs, foot
Name the characteristics of arthropods exoskeleton, segmented bodies, and pairs of jointed appendages
Name the characteristics of echinoderms endoskeleton, radial symmetry, system of fluid-filled tubes
Created by: user-1996507
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