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StudyGuide-03-S - BOT131 Spring 2008 Sec A-B,D-G Dr Liang...

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BOT131 Spring 2008 Sec. A-B,D-G :: Dr. Liang :: Study Guide 03 for Lecture 04 Page 1 of 3 KEYTERMS 01. Biodiversity: the variety of living organisms considered at four levels: genetic diversity, species richness, ecosystem diversity, and functional diversity 02. Species Diversity: variety of species existing in a given area -species richness: the number of species per unit area -species abundance: the relative size of a population in comparison of others 03. Genetic Diversity: variety within a species, both among individuals within a given population and among geographically separate populations; allows a species to survive in a variety of habitats, survive unpredictable catastrophic events, survive in a hostile environment, survive pests and diseases 04. Ecological Diversity: variety of ecosystems found on earth—the forests, prairies, deserts, lakes, etc 05. Functional Diversity: biological and chemical processes or functions such as energy flow and matter cycling—abiotic chemicals…producers…consumers…decomposers 06. Perennial Plants: a plant that lives for more than 2 years 07. Annual Plants: a plant that completes its entire life cycle in one growing season 08. Biennial Plants: a plant that takes 2 years (that is, two growing seasons) to complete its life cycle 09. Extinction: the elimination of a species, either locally (that is, no longer living in an area where it
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