Amphibians & Reptiles - PowerPoint PPT Presentation

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Amphibians & Reptiles

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  1. Amphibians & Reptiles By: Ashley Smith & Michael Varrige

  2. Introductory Information Amphibians • Kingdom: Animalia • Phylum: Chordata • Domain: Eukaryote • Sexually Reproductive • No Cell Wall

  3. Amphibians • Subgroups: Lissamphibia (more recent amphibians) • Heterotroph • Characteristics: thin, delicate, slimy skin, permeable to water, predominantly green & bright colored

  4. Amphibians • Examples include: • Toads • Frogs • Salamander • Newts • Caecilians

  5. Amphibians • Primitive Respiratory System and large Alveoli • Have gills early in life • Slow rate of oxygen diffusion to blood • Heart circulates blood, spleen stores blood • Cold-blooded

  6. Amphibians • Have nerves and a spin • Has a bladder to store Urine • Kidney used for Nitrogenous waste • Bilateral Symmetry • Deuterosome

  7. Reptiles Introductory Information • Kingdom: Animalia • Phylum: Chordata • Domain: Eukaryote • Sexually Reproductive, some capable of asexual reproduction (squmates) • No Cell Wall

  8. Reptiles • Subgroups: Eureptilia, Anapsida (differences in their skull) • Heterotroph • Characteristics: scaly skin, cold-blooded, four limbs

  9. Reptiles • Examples include: • Turtles • Alligators • Crocodiles • Geckos • Some Snakes

  10. Reptiles • 3 chambered heart that contains oxygenated & deoxygenated blood • Able to spend more time in water • Larger Cerebrum & Cerebellum than amphibians

  11. Reptiles • Bilateral Symmetry • Deuterosome • Well developed sense organs, some lack ears • Size of brain: very small, relative to body size • Generally considered less intelligent than mammals and birds