Environmental Biology Test 1

Environmental Biology Test 1 - Environmental Biology

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Environmental Biology 28/01/2008 09:34:00 Www.georgiasouthern.edu/cost/biology Click on bio.georgiasouthern.edu o Type in keyword McLain to find syllabus- with exam dates course policies practice problems Exam’s: Drop the lowest grade on the first 4 exams o Problem solving Bring a calculator/ln e to the x o Lecture material Matching, multiple choice, t or f Scantron’s: 2052, orange or brown Environmental Biology Environment= surroundings
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Surroundings o Abiotic  environment (conditions) Non-living Climate Soil (terrestrial) or  sediment (aquatic) pH  or  salinity  of water Topography (elevation, slope, compass orientation) o Biotic  Environment Living Organisms that share the same  habitat Prey; host plants  Competitors Predators parasites o Humans are part of the environment Over 40% terrestrial photosynthesis  humans  Directly- ex., crops; wood Or Indirectly- ex., meal, grain, grass  domesticated animals o Photosynthesis Photons, water, oxygen, pigments, electrons, electron transport,  protons, F1F0ATP synthase, ADP, Phosphate group, ATP,  NADP+, NADPH Resource use long-reached effects   Ex:  fences  delimiting ranches prevent migration of  herds  following  rains 
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Ex:  silt  from development of coastal property kills  corals Day 2(January 16, 2008): Environmental Science Humans  Environmental biology  preservation of biodiversity Requires  learning Knowledge  advocate  preservation  of  habitats , ecosystems, and  landscapes    Diversity=  highest where   habitats  are  most threatened o Tropics o Coastlines  what is  biodiversity ? o Species richness = number in a habitat, ecosystem, or landscape o Genetic  diversity  within   a species Subspecies  (= or not = co-occur) Races  (less different, do not co-occur) Polymorphism  (=co-occur) Q. what is a  species ? A. All the individuals o Having a  common morphology   Common size and shape
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Or  set of  DNA sequences Due to recent shared common ancestry Variation   between   species = discrete, discontinuous  Within species:  demographic exchangeability  applies o Exchange    populations   without   adverse effect o Resource use  o Interbreed o Reproductive strategies   o Population    proximity, compete The large size of the 
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Environmental Biology Test 1 - Environmental Biology

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