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When you have finished this page, take the Reptile Quiz:

Reptiles are a class of the chordate phylum. They have scaly skin and feet with claws on their toes. Both the babies and the adults breathe through lungs. They have a breastbone called a sternum to protect the heart and lungs. The female's eggs are fertilized in her body by the male. The eggs are laid in a shell that has a leathery covering to protect it in the wilds. The common reptiles are snakes, turtles, lizards alligators and crocodiles.

Click on the links below to get more information about specific reptiles:

Click on the picture below to see the movie.

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System Type
Reptiles System
Muscular-Skeletal A reptile has an inner skeleton. It has a breast bone to protect the lungs and heart. The reptiles have feet with claws.
Digestion A reptile has a mouth, tongue, teeth, an esophagus, stomach and rectum.
Nervous A reptile has a brain and nervous system. It has eyes, can sense sound.
Circulation A reptile has a heart
Respiration A reptile breathes through a trachea and lungs, including the baby reptiles.
Reproduction A reptile reproduces sexually with the female's eggs being fertilized by the male internally. The eggs, which have a leathery surface, are then carefully deposited.
Excretion A reptile is cold blooded. It is covered with scales. It has kidneys and ureters to get rid of liquid wastes. Snakes can molt or shed their skin.
Symmetry A reptile has bilateral symmetry.
Appearance A reptile varies in size from very small snakes, lizards and turtles up to huge alligators and crocodiles. Their coloration varies, but it frequently allows the reptile to blend in with its environment.


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