unit4integratingskill课件
日期：2010-04-25 04:04
IntegratingSkillsWildlifeandGardenRosesItisnotthestrongestofspeciesthatsurvive，howmanyotherscientistsarementionedinthetext?Whoarethey?Andwhataretheirtheoriesonbotany?Scanning:CharlesDarwin(1809--1882)GregorMendel(1822—1884)GoteTuresson(1892—1970)FromEnglandFromAustriaFromSwedenScientistsTheories:CharlesDarwin:GregorMendel:GoteTuresson:DifferencesinhabitatcouldleadtodifferentspeciesinbirdsaswellasinplantsManycharacteristicswerepassedonfromonegenerationtothenext，Wouldyoupleasetellsomethingabouttheevolution?1Evolutiondidoccur2Evolutionarychangewasgradual3Theprimaryprocessisnaturalselection4allthelivingspeciesarosefromasingleoriginallifegiraffeShortneck&legseliminatedLongneck&legssurvivedBesidesCharlesDarwin，northemostintelligent，buttheonemostadaptabletochangeWhosaidit?DarwinTheoriginofspeciesSurvivalofthefittestFromthesetwopictures，withoutinfluencebytheenvironmentHisresearchgivesbirthtothescienceofgeneticsDifferencesbetweenplantsofonespeciesoccurredasaresultoft，
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