PPT-Marine Reptiles and Birds

ByBiancaDavidHector and Halle Marine Reptiles The circulatory systems of reptiles are more advanced than a fishes circulation through the lungs is nearly completely separate from circulation through the rest of the body. What is a Reptile?. Reptiles have a well-developed skull, a backbone and tail, four limbs.. Snakes will be limbless and turtles have hard shells that are fused with their vertebrae.. All reptiles have dry, scaly skin, lungs, and eggs on land.. Vertebrates. 350 m.y.a. vertebrates invaded land. Decendents of bony fish . Land vertebrates had to adapt to harsher conditions on shore. Tetrapods had to develop lungs that allowed for absorption of oxygen directly from air. . Maya, Courtney, and Jae-. L. ynn. Characteristics. Reptiles are cold-blooded, vertebrates with scales covering their skin. . They are considered as tetrapod's (with four legs or leg-like appendages) even though legs are absent in some animals, like snakes. . Vocabulary. Scaly. : . covered in scales.. Extinct. : . (of a species, family, or other larger group) having no living members.. Flee. : . Run away from a place or situation of danger.. Elongated. : . of the week!!!. Sea birds and marine reptiles. Marine Reptiles. . 7000 living species. Poikilotherms. . Ectotherms. First appeared more than 3MYA. Sea Turtles. An ancient group of reptiles. Bodies . Reptiles. First to move to land. Then some came back to water . 4 orders:. Snakes & Lizards. Crocodiles, etc. Tuataras. Turtles and tortoises . Reptiles. Adapated to life on land:. Lungs. Skin--hard, prevents dessication, some have slimy coating. Being safe at school, home and on holidays. About Snakes & Other Reptiles. Snakes . and other reptiles . . are not something to be feared, but . rather creatures . to be respected as . . fascinating . NS3310 - Physical Science Studies. Geologic Time. Relative Time. Law of Superposition. Uniformitarianism. Unconformities. Absolute Time. Radiometric Datine. Earth History. Hopscotch Through Geologic Time. BY ZOLLIE. Flying reptiles are called pterosaurs.. There were at least 130 species.. Quetzalcoatlus. and Pterodactyls are flying. . reptiles.. Queatzalcoatlus. were the largest flying reptiles. Its head was the size of a car.. Click Here!. Can any of you . name. these three reptiles?. Objective: Today we are going to learn how to describe three basic characteristics of reptiles. . Click to Check out REPTILES!. Menu. Crocodiles. Ectothermic. What type of circulatory system do reptiles have. Closed. Most reptiles . are. Carnivores. Herbivores. Isomores. omnivore. A. . Carni. v. ores. Tuatara numbers are decreasing as a result of its habitat being destroyed . History of Reptiles. Reptiles arose from amphibians. Earliest fossils 359 . m.y.a. Small, four – legged vertebrates w/small teeth. Pangaea. Drier climate. Mass extinction during Paleozoic era. Diversified to fill niches left by extinct species. Fully adapted for life on land. All Amniotes – produce Amniotic Eggs. Dry, Scaly Skin. Ectothermic . More Efficient Circulatory and Respiratory Systems. Cloaca . Except for snakes, Reptiles have Paired limbs, most ending in 5 clawed toes . Chapter 26 Reptiles and Birds Reptiles Skin is smooth and dry, covered in scales Helps prevent the evaporation of water from its body. First vertebrates with adaptations that enabled them to survive on land only.