Marine reptiles and birds

Jan 08, 2013

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Reptiles and birds have long been thought to have the same pre-historic ancestor due to particular similarities in their composition.In Southern Africa the marine reptiles comprise about five turtles and a sea snake.. . Although anybody will be able to discern between a bird and a reptile the most

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Marine reptiles and birds

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Reptiles and Birds

Reptiles and Birds. By: Andrea Gamber, Shelly Nolt, and Kaitlyn DeFernelmont, period 1. Reptiles : . Scaly-skinned vertebrates that breathe with lungs and lay eggs that hatch on land. Reptiles Body Plan.

553 views • 17 slides

Marine Reptiles, Birds, and Mammals

Marine Reptiles, Birds, and Mammals. Chapter 9. Marine Reptiles. Skin covered with scales-prevents water loss Eggs have leather shell to prevent water loss as well Ectotherm-body temperature fluctuates with environment. Sea Turtles. Only 8 species of sea turtles

846 views • 54 slides

Marine Reptiles and Birds

Marine Reptiles and Birds. Class Reptilia. Characteristics. Strong bony skeleton Well developed lungs Most have 2 pairs of legs Legs are thick Toes with claws Excretory system designed to conserve water. Characteristics Cont’d. Color change Dominant sense – sight

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Chapter 11 Marine Reptiles and Birds

Chapter 11 Marine Reptiles and Birds. Marine Reptiles. Ancestors of modern reptiles appeared about 100 million years ago. Reptiles adapted for success on land, then used the same characteristics to return to the sea and gain success there as well Modern-day reptiles include: crocodilians

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Reptiles and Birds

Reptiles and Birds. What were some things that they have in common?. Snakes. Nearly 2/3 of snakes are non-venomous Less than 2% are considered harmful to humans Jacobson’s organ A snake’s skull is made up of several connected bones Snakes have between 100-400 vertebrae.

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Reptiles and Birds

Reptiles and Birds. Ms. Moore. What is a Reptile?. Body Plan: land vertebrates Well-developed skull Backbone and tail Two limb girdles with four limbs A reptile is a vertebrate that has a dry, scaly skin , lungs , and terrestrial eggs with several membranes.

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Reptiles and Birds

Reptiles and Birds. Reptiles . Reptiles Body Plan. Contrary to common belief, reptile scales can be smooth or rough, and they are never slimy. The basic reptilian body plan includes a well developed skull, a backbone and tail, two limb girdles, and four limbs.

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Reptiles, Mammals, and Birds

Reptiles, Mammals, and Birds. Reptiles, Birds, & Mammals. Amphibians. ~400 MYA. Early Reptiles: Reptilomorphs. The earliest ancestors of reptiles are reptile-like amphibians. Remember: what is THE defining characteristic of an amphibian?

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Marine Reptiles, Birds, and Mammals

Marine Reptiles, Birds, and Mammals. Reptiles. Class Reptilia Includes sea turtles, sea snakes and marine lizards ( G alapagos iguanas), marine crocodiles Ectothermic (cold-blooded) Breathe air with lungs Covered in scales

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Marine Reptiles, Birds and Mammals

Marine Reptiles, Birds and Mammals. Marine Reptile Characteristics. Land vertebrates are called tetrapods because they have four limbs designed for locomotion on land. They have lungs and breathe air, and, except for amphibians, they have reproductive systems that are not tied to water .

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Marine Reptiles, Birds, Mammals

Marine Reptiles, Birds, Mammals. Marine Reptiles, Birds, Mammals – Fig. 9-1. Ancestors of these various animals re-invaded oceans after evolving adaptations to life on land. They had to make a transition back to the ocean Four limbs  two limbs (flippers)

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Chapter 9: Marine Reptiles, Birds, and Mammals

Chapter 9: Marine Reptiles, Birds, and Mammals. 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.

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Reptiles and Birds

Reptiles and Birds. Unit 5 Chapter 26-2. Reddish-Brown Frilled Lizard. http://gladstone.uoregon.edu/~mkrueger/reptiles/types.htm. Reptiles. Major characteristics: 1. Terrestrial 2. Do not need to reproduce in water 3. Have an amniotic egg to provide embryo with moist environment

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Marine Reptiles & Birds

Marine Reptiles & Birds. Evolution Onto Land & Sea. Fish-Like Vertebrate  Tetrapods “”four footed” Obstacles: Walk on Land  two pair of limbs, structural support Breath Oxygen  lungs (two internal air sacs) Eggs Drying Out  laying eggs in water, having leathery shell or calcium shell

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Marine Birds and Reptiles

Marine Birds and Reptiles. Characteristics of Birds and Reptiles. Birds: Lay shelled eggs Breathe O 2 from air Have oiled feathers to protect them from environment Endothermic. Reptiles: Lay shelled eggs Breathe O2 from air Have scales and thick skin to protect them from environment

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Marine Mammals, Birds and Reptiles

Marine Mammals, Birds and Reptiles. To the Land and Back. 350 MYA - Tetrapods evolve from fish Need: Lungs Forelimbs Ability to avoid drying out Some move back to the oceans - new adaptations required. Sea Turtles. Enclosed by carapace Cannot retract head Flippers

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Marine Reptiles, Birds, and Mammals

Marine Reptiles, Birds, and Mammals. Chapter 9B. Biology of Marine Mammals. Little is actually known about many marine mammals Difficult or impossible to keep in captivity Difficult to observe for long periods of time at sea Some whales and dolphins are rarely seen

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Marine Reptiles and Birds

Marine Reptiles and Birds. Chapter 9. Reptiles Vs. Birds Have scaly skin scaly skin limited to feet & legs Vertebrate Vertebrate Many lay eggs all lay eggs Exothermic Endothermic Found mainly in tropical and found from polar seas to

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Reptiles and Birds

Reptiles and Birds. REPTILE FACTS. first to adapt completely to land. REPTILE FACTS. scaly skin legs lower (not at 90 o angles) claws ectotherms. REPTILE FACTS. most have three- chambered hearts some have four-chambered hearts which allow for more energy (O 2 blood separate).

365 views • 11 slides

Chapter 11 Marine Reptiles and Birds

554 views • 50 slides

Reptiles and Birds

Reptiles and Birds. A spur-thighed tortoise hatches from its egg, ready to face life as a young reptile. Reptiles and Birds. Reptiles. Humans have always been fascinated by—and sometimes frightened of—reptiles Some people fear snakes because of their venomous bites or the way they crawl

2.15k views • 210 slides

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