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Chordata-Amphibians, Reptiles, Birds

Chordata-Amphibians, Reptiles, Birds. By Kevin Wei and Scott Cramer. http://www.norcas.com/Dragon2.JPG. Amphibia. Urodela (Salamanders) Anura (Frogs) Apoda (Caecilians). http://www.washingtonnh.org/WCC_Html//artwork/Spotted-salamander.jpg. http://www.shoarns.com/frog.jpg.

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Chordata-Amphibians, Reptiles, Birds

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  1. Chordata-Amphibians, Reptiles, Birds By Kevin Wei and Scott Cramer http://www.norcas.com/Dragon2.JPG Kevin Wei

  2. Amphibia • Urodela(Salamanders) • Anura(Frogs) • Apoda(Caecilians) http://www.washingtonnh.org/WCC_Html//artwork/Spotted-salamander.jpg http://www.shoarns.com/frog.jpg http://www.gregboettcher.com/as/science/classification/images/caecilian.jpg Kevin Wei

  3. Reptilia • Dinosaurs • Lepidosaurs • Turtles • Alligators and Crocodiles • Birds http://vindyame2008.files.wordpress.com/2008/09/dinosaur-printable-invitation2.jpg http://www.reptileskb.com/images/225px-Coachella_Valley_Fringe-toed_Lizard.jpg http://www.waynet.org/waynet/spotlight/2004/images/07/turtle_back.jpg http://en.academic.ru/pictures/enwiki/70/Florida_Alligator.jpg http://digital-photography-school.com/wp-content/uploads/2007/02/images/bird-photography.jpg Kevin Wei

  4. Body Cavity • Coelomates • Peritoneum encloses the coelom http://universe-review.ca/I10-82-frog.jpg Kevin Wei

  5. Body symmetry • Bilateral Symmetry http://www.uic.edu/classes/bios/bios100/labs/bilateral.jpg Kevin Wei

  6. Nervous systems Birds: Central Nervous System (Brain and Spinal cord) Three part brain: Smell, Sight, Hearing Scott Cramer http://universe-review.ca/I10-82-bird.jpg

  7. Nervous systems Amphibians: Brain and Spinal Cord Two eyes Extra protective eyelid for land use http://www.ifrog.us/wp-content/gallery/miscellaneous/frog-nervous-system-diagram.jpg Scott Cramer

  8. Nervous systems Reptiles: Brain & Spinal Cord Nerves running from both to Sense organs Scott Cramer http://universe-review.ca/I10-39-thirdeye.jpg

  9. Circulatory systems Reptiles: Poikilothermic (Cold Blooded) Three Chambered heart Some pythons heart can be 4 Chambered Crocodiles have 4 chambered heart w/ two systemic aortas http://universe-review.ca/I10-82-circulatory.jpg Scott Cramer

  10. Circulatory systems Amphibians: Three chambered heart Ectothermic: Cold-Blooded body temperature regulation Some Gills http://www.cartage.org.lb/en/themes/sciences/lifescience/GeneralBiology/Physiology/RespiratorySystem/MethodsRespiration/frogslungs.gif http://www.biologyreference.com/images/biol_02_img0188.jpg Scott Cramer

  11. Circulatory systems Birds: Warm Blooded 4-Chambered heart, left ventricle pumps into body- much bigger http://theunjustmedia.com/Darwinism%20Refuted/Darwinism%20Refuted/Kuzemnre1.jpg http://www.dkimages.com/discover/previews/801/910514.JPG Scott Cramer

  12. Digestive system • Mouth(Beaks), tongue, esophagus, stomach, intestine, rectum http://img197.imageshack.us/img197/2453/snakejim.jpg Scott Cramer

  13. Excretory system • Kidneys and ureters to dispose of bodily wastes http://www.bio.davidson.edu/Courses/bio112/Bio112LabMan/cppig2_files/image012.gif Scott Cramer

  14. Locomotion/Musculature • Adult Amphibians-Tetrapods • Apodans are legless-burrowing • Some larval stages swim(Undulation) • Reptiles-Bipedal, Tetrapods, Legless(lateral bending) • Birds-Bipedal, Wings, Swim http://users.manchester.edu/Student/AMCosaboom/Tadpoles/tadpole.jpg http://www.clownlink.com/uploaded_images/frog_jumping-714039.gif http://www.magazine.noaa.gov/stories/images/nwhi-flying-bird.jpg http://homepage.mac.com/jlepson/Bird-A-Thon/Gopher%20Snake%20a.jpeg Kevin Wei

  15. Skeletal type • Inner skeletons with backbones • Most have two limbs attached to main body http://www.mcwdn.org/Animals/Amphibian.html http://www.photobirds.com/templates/default/images_pubs/bird_skeleton.jpg Kevin Wei

  16. Sensory structures/features • Eyes • Noses • Tongues • Touch --(Skin/scales/feathers) • Ears http://upload.wikimedia.org/wikipedia/commons/4/41/Salamander_head.png Kevin Wei

  17. Reproduction • Sexual Reproduction-Amphibians(external), Reptiles+Birds(internal) • Amniotes(Birds and Reptiles)-Eggs with an extraembryonic membrane(amnion) • Amphibian eggs lack an amnion • Amnion protects embryo in a fluid-filled cavity http://www.arkive.org/media/8D/8DB1F04B-048A-483A-B15A-0677C7DC0330/Presentation.Large/photo.jpg http://www.cartage.org.lb/en/themes/Sciences/Zoology/Biologicaldiverstity/AnimalsIII/amniotegg.gif Kevin Wei

  18. Gas exchange • Amphibians-Cutaneous and Pulmonary on land • Reptiles+Birds-Pulmonary http://www.devils-punchbowl.com/images/birds/redtail2.jpg http://www.snakeeducation.com/photos/snakes/red%20rat%20snake%20pattern.JPG Kevin Wei

  19. Interesting fact • Birds are closest relatives of dinosaurs(Grouped as Saurischians) ? = http://yepyep.gibbs12.com/wp-content/uploads/2007/08/bryce9-t-rex.jpg http://bioweb.uwlax.edu/bio203/s2008/manelli_chri/Images/bird.JPG Kevin Wei

  20. Quiz • True or False: Amphibians are not coelomates • A: FALSE • Which group is warm-blooded? Amphibians? Reptiles? Birds? • A: BIRDS • What is the role of the amnion? • A: To protect the embryo? • Do all amphibians have legs? • A: NO Kevin Wei

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