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Lecture

Evolution, Ecology & Biodiversity - Key Words.doc

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Department
Biology
Course
BIO1130
Professor
All Professors
Semester
Fall

Description
EVOLUTION ECOLOGYBIODIVERSITYKEY WORDSAbiotic factorsNONLIVINGChemicalPhysical aspects in environmentCAN impact evolution EgClimatic oTemperaturecoldless biodiversity oWater Availabilitychange bw wetdry environments modify continentsoWindchurn water keep planet at constant ToLightmore chigher T EgNonClimactic oSaltsminerals allow for biochemical rxns oPH775 to maintain life Adaptation related to natural selection Organism becomes BETTER SUITED for its environment Specific FEATURES help it get betterOccurs over many generationsBetter adaptedmore likely to survivereproduceEghorses teethbetter grindingAnalogy Homoplasy Convergent Evolution SAME function DIFFERENT origin ancestorEgbee wings vs hummingbird wingsAphotic ZoneArea in AQUATIC environments NO PHOTOSYNTHESIS occurs bc1 light penetrates Inhabitants MUST be able to live in COMPLETE darkness Oceans horizontal OCEANIC zone Freshwater horizontal limnetic zoneEganglerfish giant squidBenthic Zone Ecological regionLOWEST level of AQUATIC environmentsIncludes layer LINING watersublayers Oceans horizontal OCEANIC zone Freshwater horizontal limneticlittoral zoneEgLayer LINING body of water includes osand bottoms rock outcrops corals and bay mud BiodiversityVARIATION of life forms wI ONE ecosystem or ENTIRE earthHELPS species survive Measures HEALTH of system indicates THREAT of extinction
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