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1. Quiz

2. ______1. It have segmented bodies and tough exoskeleton with appendages. ______2. Are animals without backbones or vertebral columns. ______3. Also called as pore-bearing animals. They have no tissues and organs. ______4. Also called as soft-bodied animals. Group of them have external shells. ______5. Also called as spiny-skinned animals. They live in marine water.

3. ______6. Also called as stinging-cell animals. They have tissues and radial symmetry. ______7. Also known as flatworms. ______8. Also called as segmented worms. They are a phylum of soft bodied. ______9. Also known as roundworms. They have visible segment. ______10. It have three pairs of legs or six-legged arthropods in their adult form. 11-15. Give 5 animals that are invertebrates.