ANATOMY

Detailed explanation-1: -Reptiles are a group of cold-blooded animals which have skins covered with small hard plates called scales and lay eggs. Snakes, lizards, and crocodiles are reptiles.

Detailed explanation-2: -Reptiles-are animals that are cold-blooded, covered by scales, and mostly lay eggs.

Detailed explanation-3: -Reptiles are cold-blooded, or ectothermic, animals. This means that they cannot produce heat in their own bodies, and have to rely on their surroundings to keep warm. This is why most reptiles are found in hot or warm climates. Reptiles often bask in the sun to get warm.

Detailed explanation-4: -Reptiles live on land, have scaly skin and lay eggs with shells. They have lungs rather than gills and may or may not have teeth. Some examples of reptiles are turtles, tortoises, lizards, snakes, crocodiles, and dinosaurs (now extinct).

Detailed explanation-5: -The major groups of living reptiles-the turtles (order Testudines), tuatara (order Rhynchocephalia [Sphenodontida]), lizards and snakes (order Squamata), and crocodiles (order Crocodylia, or Crocodilia)-account for over 8, 700 species.