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Chambered hearts - PowerPoint PPT Presentation

Reptiles and Birds

Reptiles and Birds. REPTILE FACTS. first to adapt completely to land. REPTILE FACTS. scaly skin legs lower (not at 90 o angles) claws ectotherms. REPTILE FACTS. most have three- chambered hearts some have four-chambered hearts which allow for more energy (O 2 blood separate).

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BIRD CHARACTERISTICS

BIRD CHARACTERISTICS. By: Ariana Mejia. Characteristics. Vertebrates Endothermic Skin covered with feathers Four-chambered hearts Bones are lightweight and usually hollow Forelimbs are modified as wings Lay eggs. Characteristics. Vision is their most highly developed sense

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Chambered hearts - PowerPoint PPT Presentation

Reptiles and Birds

BIRD CHARACTERISTICS