Chapter 7a

Chapter 7a - Biodiversity Biologists have named about 1.8...

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Biodiversity Biologists have named about 1.8 million species Estimates of total species range from 10 million to over 200 million
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Biodiversity ecosystem / habitat species genetic totality of genes, species, and ecosystems of a region http://www.unl.edu/nac/conservation/atlas/Map_Html/Biodiversity/National/Number_of_Species/Number_of_Species.htm
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Where does this biodiversity come from? Biological Evolution Change in inherited characteristics of a population from generation to generation
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Natural Selection Mechanism by which these changes take place favorable heritable traits become more common in successive generations of a population of reproducing organisms, and unfavorable heritable traits become less “unequal reproductive success” Mutation- mistake in copying of DNA Ultimate source of variation
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The Three Domains of Life At the highest level, life is classified into three domains : Bacteria Archaea Eukarya Eukarya includes protists and the kingdoms Plantae, Fungi, and Animalia
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LE 1-15 Bacteria 4 µm 100 µm 0.5 µm Kingdom Plantae Protists Kingdom Animalia Kingdom Fungi Archaea
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Chapter 7a - Biodiversity Biologists have named about 1.8...

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