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Chordata-Amphibians, Reptiles, Birds By Kevin Wei and Scott Cramer Kevin Wei.

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Presentation on theme: "Chordata-Amphibians, Reptiles, Birds By Kevin Wei and Scott Cramer Kevin Wei."— Presentation transcript:

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/spotligh t/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 http://universe-review.ca/I10-82-bird.jpg Scott Cramer

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 http://universe-review.ca/I10-39-thirdeye.jpg Scott Cramer

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://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 http://users.manchester.edu/Student/ AMCosaboom/Tadpoles/tadpole.jpg

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.cartage.org.lb/en/themes/Sciences/Zoology/Biologicaldiverstity/AnimalsIII/amniotegg.gif http://www.arkive.org/media/8D/8DB1F04B-048A-483A-B15A-0677C7DC0330/Presentation.Large/photo.jpg Kevin Wei

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

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