PPT-Marine Reptiles

Reptiles First to move to land Then some came back to water 4 orders Snakes amp Lizards Crocodiles etc Tuataras Turtles and tortoises Reptiles Adapated to life on land Lungs Skinhard prevents dessication some have slimy coating. 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. . Jessica Brown. Miila. Hall. Cold-blooded. Tetrapods. , four appendages. Considered as the first animals on land with the ability to live and multiply on land (amniotic egg). Amniotic egg- . a shelled, water-like sac that enables reptiles to complete their life cycles on dry land.. 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 . Phylum: . Chordata. . Subphylum:Vertebrata. Order. Testudines. Rhynchocephailia. Squamata. Crocodilia. Common . example. Turtles and tortoises. Tuataras-found only in New Zealand. Lizards, snakes, and worm lizards. NOAA’s National Marine Fisheries Service, Office of Protected Resources Michele T. Sharer The mouth of a this turtle species looks like the beak of a hawk, thus the name hawksbill was given to NS3310 - Physical Science Studies. Geologic Time. Relative Time. Law of Superposition. Uniformitarianism. Unconformities. Absolute Time. Radiometric Datine. Earth History. Hopscotch Through Geologic Time. 2. Amniotic eggs have . membranes that protect the embryo from . desiccation, cushion the embryo, help with gas exchange, and store waste material.. 3. The amniotic eggs of reptiles and birds also have leathery or hard shells that protect the developing embryo, and a yolk that supplies food to them.. 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. Geologic Time. Geologic Time. Relative Time. Principle of Superposition. Principle of Original Horizontality. Principle of Original Continuity. Principle of Crosscutting Relationships. Principle of Inclusion. Justify the statement that “the amniotic egg provided solutions that made development apart from external watery environments possible.”. Compare amniote taxonomy before and after the application of cladistic methods.. Shore Birds:. Also known as Waders. Feed on abundance of marine life in the intertidal zone. Size varies from as small as a sparrow to larger than a chicken. Group includes oyster catchers, tattlers, curlews, godwits, turnstones, sandpipers, jacanas, surfbird, phalaropes and inland species such as woodcocks. By:Bianca,David,Hector 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.. 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.