Vertebrates_Part_II

Vertebrates_Part_II - Bird Adaptations Feet differ by...

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Vertebrates: Part II Reptiles & Birds
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Reptiles Dry body covering Scales made of keratin Heart has 3 chambers Well-developed lungs Toes have claws
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Reptile Reproduction Amniote Egg developed Internal fertilization
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Homeostasis Modern reptiles = ectotherms Dinosaurs may have been endotherms
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Special Senses Jacobson’s organ Visual range Heat-sensing pits
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Classes of Reptiles Rhynchocephalia Testudo Squamata Crocodilia
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Birds Body covered by feathers Endothermic Bones have air sacs Toothless bill
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Unformatted text preview: Bird Adaptations Feet differ by lifestyle Bill based on food type Forelimbs = wings Feather Types Down Filoplumes Contour Flight Homeostasis Endotherms 4-chamber heart High metabolism Rapid heartbeat Other Systems Nervous: highly developed Excretory: reduced Digestive Crop stores food for later Gizzard grinds food Bird Reproduction System Reduced Produce Amniote Egg Internal Fertilization...
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Vertebrates_Part_II - Bird Adaptations Feet differ by...

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