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Most cells are so small that you need a powerful magnifying lens to see one. Some cells are so small that you could put 2,50,000 of them on the dot you put at the end of this sentence. There are also some which are large enough be seen with naked eyes. Among these large cells are the root hairs of plants, certain seaweeds, and the eggs of animals.Cells are of many shapes. Some are round. Others look like bricks with rounded corners. Still others are long and hairlike. Some cells are shaped like plates, cylinders, ribbons or spiral rods.
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