in its many forms--plants, animals, and even amoeba, bacteria, and fungi. Words and pictures describe how different life forms adapt to the earth's different environmental conditions. Readers will find sections that summarize Darwin's theory of natural selection, Mendel's genetic classification, the twentieth-century discovery of DNA, the parts and functions of plants and animals, and the ways in which all life forms fit into the earth's ecosystem. Like other titles in Barron's Essential Atlas series, The Essential Atlas of Biology will be valued as a fine educational supplement for classrooms and libraries.

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