Mammals - Have hair, Reptiles - Have hard scales, Birds - Use wings to fly, feathers - Birds body covering, oviparous - Birds hatch from eggs, they are ___________, cold - Reptiles have __________ blood, lungs - Mammals and birds breathe through ________, warm - Mammals have _________ blood , fly - How do birds move?, short - Reptiles have ___________ legs or NO legs., limbs - Most mammlas have 4 ___________, beak - Mammals have a mouth, birds have a _________, eggs - Reptiles reproduce by ____________, viviparous - Mammals grow inside their mothers womb,

Vertebrates

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