Download Animal Sciences. Per-Zoo by Allan B. Cobb PDF

By Allan B. Cobb

This encyclopedia set, a part of the Macmillan technology Library sequence, is designed to deal with middle-school scholars via university undergraduates. The paintings comprises nearly three hundred signed entries on numerous issues on the subject of animal technology, together with animal improvement, features, habit, ecology, and evolution.The connection among animals and people can also be explored in entries resembling Animal checking out, Apiculture, and family animals. additionally incorporated are biographies of famous scientists who've made ''significant contributions'' to the sector (for example,Henry Walter Bates, Rachel Carson, Gregor Mendel) in addition to introductions to occupation possibilities within the comparable disciplines. Articles look in alphabetical order and variety in size from numerous paragraphs to numerous pages. All are followed by way of see additionally references and extra interpreting feedback (including internet sites). each one quantity starts off with an entire desk of contents, a geological time scale, 5- and six-kingdom type comparisons, a phylogenetic tree of lifestyles, and a chart of measurements, abbreviations, and conversions. each one concludes with a subject matter outline,an index (volume four encompasses a cumulative index), and a 600-plus-word thesaurus.

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And William T. Keeton, and Carol Grant Gould. Biological Science, 6th ed. New York: W. W. , 1996. 29 Populations Krebs, Charles J. Ecology: The Experimental Analysis of Distribution and Abundance. New York: Harper Collins College Publishers, 1994. , Jr. Population Dynamics: Alternative Models. New York: Academic Press, 1979. Pianka, Eric R. Evolutionary Ecology. New York: Addison Wesley Longman, 2000. , and Gary L. Miller. Ecology, 4th ed. New York: W. H. Freeman, 2000. Soloman, Maurice E. Population Dynamics.

The woolly mammoth developed a thick fur and began to graze in the spruce forests that bordered the ice. The rhinoceros also moved into Europe and central Asia and developed a coat of thick fur for surviving in the cold conditions. Its front horn grew to extreme lengths, reaching nearly a meter, and some researchers have suggested that legends describing the survivors of this species may have led to the myth of the unicorn. The massive and dangerous archaeocyonids, or bear dogs, were enormous predators whose bones are still found in caves today.

Much of the nitric oxide is converted to nitrogen dioxide in a chemical reaction promoted by sunlight. Computer-controlled combustion and optimally designed combustion chambers can partially reduce the formation of nitrogen oxides. Special catalytic converters can combine nitric oxide with carbon monoxide and unburned hydrocarbons to produce nitrogen, carbon dioxide, and water. Unburned hydrocarbons. Unburned hydrocarbons in air also represent wasted fuel. Gaseous hydrocarbons are not toxic at concentrations normally found in the atmosphere, but unburned hydrocarbons are a major contributor to the formation of ozone and smog.

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