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…showed last 75 words of 1148 total…garden soil may contain as many as 50 million. They are present on and within animals and plants. They exist in the ocean, on the desert, in hot springs, and in the snow of polar regions. Bacteria have been found many miles high in the atmosphere, at the bottoms of rivers and lakes, and in the deepest mines. Some are able to flourish at temperatures high enough or low enough to kill other forms of life.