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Subject D is the establishment of species and the process of speciation . After reviewing the history of various concepts of species , the outline proceeds to the modern biological concept , which has reproductive isolation of a group ...
The rate of evolution : effects of environmental change and conquest of a new medium such as air , dry land , or freshwater ; significance of nonadaptive or adaptively neutral features D. The establishment of species and the process of ...
They treat three main subjects : A , biological populations , made up of interacting and interdependent individual organisms of the same species ; B , biotic interactions , the dynamic processes in the large ecological units of ...
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The New Encyclopaedia Britannica (Encyclopaedia)User Review - Not Available - Book Verdict
For virtually all its 238 years,Britannica has ruled the shelves as a peerless general encyclopedia. Reviewers have consistently given it high marks for most of the 12 criteria identified inKister's ... Read full review
Part One Matter and energy
Energy radiation and the states and transformation of matter
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