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A Survey of Living Vertebrates

This survey explores the characteristics of living vertebrates, including amniotic eggs and classification. Discover the diverse groups such as cartilaginous fish, bony fish, reptiles, birds, and mammals.

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A Survey of Living Vertebrates

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  1. A Survey of Living Vertebrates 20-2

  2. Manta ray - cartilaginous fish Puffer fish - bony fish Snapping turtle - reptile Crocodile - reptile Sand lizard - reptile Flamingo Swan - feeding etc. What is it? (side four - chapter 10)

  3. Can you….. • Describe the characteristics of living vertebrates? • Describe the amniotic egg?

  4. Textbook page 475 • What are the key points that each section contains?

  5. Classification of Vertebrates All vertebrates have a backbone. Most also have • two sets of appendages • closed circulatory system • ventral heart • gills or lungs

  6. Jawless Fish • Only living vertebrates without jaws • Lamprey • Hagfish (page 471)

  7. Cartilaginous Fish • Sharks, skates, rays • Chondricthyes • Fearsome predators • Few attack humans

  8. Bony fish • enormous and diverse class • Ostrichthyes • ray-finned fish • lobe-finned fish - evolved to tetrapods

  9. Amphibians • few species • few survived Permian extinction • lay eggs in water • larva have gills • adults have lungs • moist skin as respiratory surface

  10. Attracting a mate Mating behavior

  11. Varnished to save water

  12. Reptiles • Internal fertilization • Fully terrestrial - first • Amniotic egg • Three orders: Turtles and tortoises; crocodiles and alligators; lizards and snakes

  13. Birds • Class Aves • Feathers • Amniotic egg • 27 different orders

  14. Mammals • All have mammary glands • Monotremes: leathery-shelled eggs • Marsupials: pouched • Placental mammals

  15. Placental mammal

  16. 1 g 2 h 3 f 4 d 5 b 6 a 7 c 8 e 9 i 10 f 11 i 12 d 13 two sets 14 gills, lungs 15 T 16 cartilage 17 T 18 lungs 19 T 20 T 21 lizards, snakes 22 body heat 23 T 24 marsupials Xerox 20-2

  17. Xerox page two • 13 two • 14 gills or lungs • 15 T • 16 cartiledge • 17 T • 18 T • 19 T • 20 T • 21 lizard, snakes • 22 body heat • 23 T • 24 marsupials

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