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from article Continental drift
Map of the Earth as Pangea broke up as a result of continental drift. (Copyright © McGraw-Hill)
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from article Computer virus
Some viruses are more destructive than others, causing devastation or theft of data. (Credit: iStockphoto.com/Zmeel Photography)
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from article Computer virus
Purposes for creating viruses.
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from article Computer virus
Daily virus threats experienced by large organizations.
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from article Computer virus
Examples of vulnerabilities to computer viruses.
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from article Computer programming
Program code. (Credit: Max Delson Martins Santos/Getty Images)
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from article Sturgeon
Shovelnose sturgeon (Scaphirhynchus platorynchus). (Photo by Konrad Schmidt)
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from article Stalactites and stalagmites
Stalactite and stalagmite deposits. Along the central opening are deposits made by water as it dripped from the crack in the limestone. Outside layers were deposited by water flowing over the surface. Water may drip to the floor and create a…
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from article Teleconferencing
A typical teleconference. (Courtesy of Lifesize, www.lifesize.com)
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from article Plant-water relations
Water transport system in plants. The xylem (the principal water-conducting tissue) is continuous from the roots through the stem to the leaves. (Copyright © McGraw-Hill Education)
