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Lesson 35 What are vertebrates?
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What do goldfish, frogs, turtles, robins, and people all have in common? They are vertebrates. Vertebrates are animals with backbones.
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The backbone protects the spinal cord. The spinal cord is made up of many nerves which eventually spread out to your whole body. The backbone also helps support the animal.
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Vertebrates also have a skeleton inside their body. This internal skeleton protects the animal from harm. An internal skeleton is also called an endoskeleton.
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There are five major groups of vertebrates. They are: fish amphibians reptiles birds mammals
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You can probably name birds and fishes, but do you know what animals are amphibians?
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What about reptiles?
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You should be able to name many, many mammals.
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