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Vertebrates Invertebrates
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Vertebrates
• Four vertebrate classes
Amphibia-Amphibians
Reptelia-ReptilesAves-Birds
Mammalia-Mammals
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Invertebrates•Four Invertebrate classes
Annelids
MollusksInsects
Arachnids
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Reptelia-Reptiles• The most common reptiles include alligators, crocodiles, lizards, snakes, tortoises and turtles.
Mammalia-Mammals• Most mammals have hair, or fur, covering their body.• Most mammals walk on 4 legs, with only the humans walking upright on 2 legs.
Annelids• There are about 9,000 species of Annelids known today, including worms and leeches.• There are many types of worms.
Arachnids• Common arachnids are spiders and scorpions.• There are also mites and ticks which are small arachnids that are parasites.
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