Vertebrates

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The animals which have backbone are called vertebrates. The vertebrates are divided into five classes. They are Pisces, Amphibia, Reptilia, Aves and Mammalia. Pisces The animals of class Pisces live in water .All types of Pisces belong to this class. Their body is covered with scales. The fishes have gills for breathing. They have fins and tail for swimming. Examples of Pisces are fish, shark, seahorse etc.
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