Evolution 3

Title: Evolution 3
Category: Science & Technology
Details: Words: 1992 | Pages: 8.5 (approximately 235 words/page)

Evolution 3

EVOLUTION. People have always wondered how life originated and how so many different kinds of plants and animals arose. Stories of a supernatural creation of life developed among many peoples. The Bible, for example, tells of God's creation of humans and other higher animals over several days. Many people also believed that insects, worms, and other lower creatures spontaneously generated from mud and decay. Long after these stories became rooted in tradition, scientists began to …showed first 75 words of 1992 total…

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…showed last 75 words of 1992 total…recessive homozygotes would leave few or no offspring. These genes would not be lost from the gene pool, however. Instead, they would be maintained in low frequency for generations through the heterozygotes, in whom only the dominant genes are expressed. Then someday those recessive genes might have some survival value if the natural environment undergoes changes. (See also Biochemistry; Biology; Ecology; Heredity.) --------------------------------------------------------- Excerpted from Compton's Interactive Encyclopedia Copyright © 1994, 1995, 1996, 1997 The Learning Company, Inc. All Rights Reserved.

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