Bio36_03_BasicBio - 1 2 1 3 1 2 4 5 1 2 8 9 1 Overview...

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1 Overview • Register your ResponseCard RF • Ch. 3: Basic Needs of Living Things – Organisms in their Environment – Environmental Factors – The Cycling of Matter in Ecosystems Organisms in their Environment • Ecology • Hierarchy – Species – Populations – Biotic communities – Ecosystems – Biosphere What Is a Species? • Organisms are classified by relatedness – Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species •E.g., Homo sapiens or Cannabis sativa • Biological species concept – Based on reproductive isolation – Other species concepts Ecosystems • Ecosystems are not completely separate • Ecotones: transition zones Environmental Factors • Conditions – Temperature, pH, salinity, etc. • Resources – Used by organisms (e.g., light, food) • Habitat – Kind of place a species is adapted to live
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This note was uploaded on 01/12/2012 for the course BIOLOGY 36 taught by Professor Teresafinnern during the Fall '11 term at Riverside Community College.

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Bio36_03_BasicBio - 1 2 1 3 1 2 4 5 1 2 8 9 1 Overview...

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