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Animals Animals make up one of the three kingdoms of multicellular eukaryotic
organisms (i.e., as distinct from bacteria, their deoxyribonucleic acid, or DNA, is
contained in a membrane-bound nucleus). Unlike fungi (Mycota) and plants, the
Some barnacles and other animals have small males that are parasitic on the
females. Mobile animals employ many kinds of devices for signaling their
availability to the opposite sex. Pheromones, Compe- sound, and visual cues are
used by one organism or another, so that what one animal wins is lost to the rest.
Animals do whatever they can to acquire all the energy they can use, and in this
basic sense each is competing with all the others. Ultimately, preda- tion is a ...
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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