What Is Tapioca?
What Is Tapioca? Tapioca is a food that is made from the starchy roots of a large plant that grows in the warm countries of the world. The plant is called manioc or...
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Why Do Some Flowers Close up at Night?
Why Do Some Flowers Close up at Night? Flowers close their petals at night because they are protecting the pollen and other reproductive parts of the plant that are...
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Why Does Paper Turn Yellow with Age?
Why Does Paper Turn Yellow with Age? Oxidation causes paper to turn yellow with age. Most paper is made of plant fibers that have been bleached white. After a time, the...
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What Is Cell Culture?
Cell culture refers to the removal of cells from an animal or plant and their subsequent growth in a favorable artificial environment. The cells may be removed from...
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What Is a Stinging Nettle?
What Is a Stinging Nettle? A stinging nettle is one of a group of plants that have stinging bristles. They are coarse herbs found in the northern temperate regions....
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