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Practice questions for this set
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most flexible part of the Theropod dinasaur
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1 Feathers 2 s-shaped neck
3 Ratites 4 Theropod dinosaurs
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Terms in this set (33)
single unique feature that distinguishes birds from other
Feathers
living animals
keratinized beak
wings all birds have these, they are modified forelimbs
pneumatic bones light, delicate bones laced with air cavities
Thomas Henry Huxley classified birds as these, they had
Theropod dinosaurs
long, mobile, S-shaped necks that were very flexible