Chapter 29 29.1 CLASS REPTILIA – pg. 852 “to creep” Includes snakes, turtles, tortoises,...
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Transcript of Chapter 29 29.1 CLASS REPTILIA – pg. 852 “to creep” Includes snakes, turtles, tortoises,...
![Page 1: Chapter 29 29.1 CLASS REPTILIA – pg. 852 “to creep” Includes snakes, turtles, tortoises, lizards, alligators, crocodiles, tuataras Dry, scaly skin Claws.](https://reader034.fdocuments.us/reader034/viewer/2022051019/5697bf901a28abf838c8df09/html5/thumbnails/1.jpg)
Chapter 29
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29.1 CLASS REPTILIA – pg. 852
“to creep”
• Includes snakes, turtles, tortoises, lizards, alligators, crocodiles, tuataras
• Dry, scaly skin• Claws
Gecko
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CLASS REPTILIA• Gas exchange: lungs• Most have 3 chambered hearts• Ectothermic• Molting - shedding of the old skin
Diamondback Terrapins hatching
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Hognose snakes hatching
•Internal fertilization / external development (most)
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Galapagos Tortoises Diamondback Terrapin Tortoise
Loggerhead Turtle Hawksbill Turtle
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Turtle or Tortoise?
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CLASS REPTILIA• Jacobson’s organ - tastes the air
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Only in Thailand!
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29.2 Class Aves: pg. 861
includes all birds
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CLASS AVES - “birds”
• All have feathers• Not all can fly
PeacocksPenguin
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CLASS AVES• Four chambered heart• Endothermic
Pelicans
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CLASS AVES• No teeth
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CLASS AVES•Preening - feather maintenance•Molting - shedding of old feathers•Bones - thin & hollow
Less bone = less muscle
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CLASS AVES• Internal fertilization /
external development• Incubation• Gas exchange– Air sacs & lungs
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CLASS AVES• Variety of: – Legs– Feet– Wings– Eyes– Claws– Beaks
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Pelicans
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Birds evolved from the Theropod dinosaur
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