植物专业英语

Thflowrplants15生物科学蒋林婵BiologyThxplainfromWikipdiaBiologyBiologyisanaturalscincconcrndwiththstudyoflifandliing现存的）organisms生物体）,includingthirstructur组织）,function功能）,growth,olution,distribution分布）,idntification鉴别）andtaxonomy分类）.ThxplainfromWikipdiaFlowrAflowr,somtimsknownasabloomorblossom花）,isthrproducti生殖的）structurfoundinplantsthatarfloral花的）.(plantsofthdiision部门）Magnoliophyta被子植物门）,alsocalldangiosprms被子植物）).PollnThisispolln花粉）,thmal雄性）sxcllsofconifrs针叶植物）.Eachgrain颗粒）hastobmagnifid放大）10,000timstorallysit.Thtwoairsacs囊）,oninachsid,catchthbrz.PollnWithluck,thmalpollnwillbblowntoafmal雌性）con球果）onanarbytr.Butforthattohappn,achconifrndsastamounts.It’srywastful.Upto10billiongrainshatobrlasdbyasingltr.DoublFrtilisationItallstartsatthmomntofpollination授粉作用）.Haingbndlirdbyaninsct,twocllsfromthpollnburrowdpintothflowr’soary子房）.Hr,onfrtiliss使受精）angg卵细胞）tocratanmbryonic胚胎的）plant.DoublFrtilisationBut,andhr’sthclrbit,thscondcllfromthpollndosacompltlydiffrntjob.Instadofbacominganwplant,itgrowsintoafoodsourcforthfrtilisdgg.Akindofpackdlunch.It’scalldDoublFrtilisation双受精）,andit’suniqutothsds种子）offlowrs.TranspirPlantsislosingwatr,ortranspiring蒸腾）:throughtinypors孔）inthlafcalldstomata气孔）.FruitFruitisthsdbaring结种子的）structurinflowringplants(alsoknownasangiosprms)formdfromthoaryaftrflowring.Fruitisonofthmostrmarkabltransformations进化）innatur.ConlusionFlowrshadtransformd改变）ourplant.Thy’dcomtodominat控制）thplantkingdom,sculpting雕塑）thEarthitslf.Aboall,flowrdro推动）tholutionofanimals,spciallyprimats灵长类）,shaping形成）ourhumanolution.Thankyou