简介：Rhea祝大家新年快乐！美国人的新年是在1月1日，和中国一样，我们也放烟花、吃大餐，还要送祝福。在这儿，我送给大家一个关于猴子的小故事。读完后，你能完成这些练习吗？

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简介：原花青素广泛存在于植物中。是一大类多酚类化合物的总称。是目前为止所发现的最强效的自由基清除剂，具有非常强的体内活性。实验证明，原花青素的抗自由基氧化能力是维生素E的50倍、维生素C的20倍。井吸收迅速完全，口服20分钟即可达到最高血液浓度，代谢半衰期达7小时之久。具有延缓衰老和增强人体免疫力的作用。

简介：<正>ThebrineshrimpArtemiaisoftenabundantlyfoundinhypersalineenvironments.Thelarvae(‘nauplii’)hatchingfromitsdormantembryos(‘cysts’)areacruciallivefooditemforthelarvalstagesoffishandshrimpinaquaculture

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简介：Withthehigh-speeddevelopmentofeconomyinChina,peoplerequirehigherandhigherqualityoffood,andaccidentsoffoodsafetyinrecentyearshavebeenreported,causingthepromotionofconsumptiondemandongreenfood.Thepaperfirstlyinvestigatesthecurrentsituationofgreenfoodindustryathomeandabroad,thenfocusesontheanalysisofthedemandofgreenfoodmarket.Westudythebalancebetweenthegreenfoodandthepercapitadisposableincomeinshortandlongterm,throughvectorautoregressionmodelandco-integrationanalysisontheincomeelasticityofdemand.Thepapershowsthat,therelationshipbetweengreenfoodconsumptionandpercapitadisposableincomeis"bullwhipeffect",whichmeansthatthepercapitadisposableincomehaveasignificantroletothegreenfoodsalesintheshortterm,butnostableco-integrationrelationshipinthelongterm.

简介：蚜虫属gossypii格洛弗显示出明显的主人专门化，与在许多区域的专业化葫芦、专业化棉花的遗传因子型或主人赛跑。因为它的年度出生的主人庄稼更早开始衰老，专业化葫芦的遗传因子型可以承受食物缺乏。这遗传因子型使用克服这挑战的方法仍然糟糕被理解。以便在主机移动和用法理解专业化葫芦的遗传因子型蚜虫的潜力，棉花(Gossypiumhirsutum)上的这遗传因子型的性能，普通却差的优秀主机植物，在这研究被探索。仅仅当这些植物有至少九片叶子时，专业化葫芦的蚜虫能在棉花上建立人口，并且随后的人口相当慢慢地发展。存在whitefly，棉花上的人口改进了专业化葫芦的蚜虫的成功率。专业化葫芦的蚜虫在棉花的更旧的叶子主要是分布式的，与仅仅在上面的叶子安定的一些。为40，54和61 days在棉花上饲养的专业化葫芦的蚜虫仍然为他们的出生的主人植物，黄瓜(Cucumissativus)，而非棉花维持了强壮的偏爱，并且当他们被转移到新六叶的棉花上时，他们繁殖的率和天赋的内在的率增加的网戏剧性地更低植物或分开的叶子。因此，我们断定专业化葫芦的蚜虫有潜力利用成熟或强调whitefly的棉花植物，而是那棉花上的这喂的经验没为葫芦改变他们的专门化。一些棉花植物能充当一位暂时的主人让专业化葫芦的蚜虫克服食物缺乏从开始衰老产生葫芦。

简介：Soilfoodwebstructureisfundamentaltoecosystemprocessandfunction;moststudiesonsoilfoodwebstructurehavefocusedonagro-ecosystemsunderdifferentmanagementpracticesandnaturalterrestrialecosystems,butseldomongreenhouses.ThisstudyexploredthestaticandtemporalvariabilityofsoilfoodstructureintwogreenhousesofShandongProvince,NorthChinaoveratwo-yearperiod.Thestaticpropertiesweremeasureddirectlybysurveyingfunctionalgroupcompositionandaseriesofparametersportrayingthespeciesproperties,linkproperties,chainpropertiesandomnivorypropertiesoftheweb,aswellasindirectlythroughcalculationofnematodeindices,enrichmentindex(EI),structureindex(SI),andchannelindex(CI).Thedynamicvariabilityofgreenhousesoilfoodstructurewasdescribedbythedynamicsoffunctionalgroups,Bray-Curtis(BC)similarityandclusteranalysis.Theresultsshowedthatthegreenhousesoilfoodwebcontained14functionalgroups,withmicrobeshavingthehighestmeanbiomass,followedbyprotozoa.Ofthethreefunctionalgroupsofprotozoa,flagellateswerethedominantgrouponmostsamplingdates,amoebaeonlybecamethedominantgroupduringthesummer,whileciliatesweretheleastprevalentgroup.Allnematodeswereassignedintooneofthefourfunctionalgroups,bacterivorous,fungivorous,herbivorousandomnivorous,andthefungivorousnematodeshadthelowestmeanbiomass.Miteswereassignedintothreefunctionalgroupsandtheomnivorousnoncryptostigmaticmiteswerethedominantgroup.Allthefunctionalgroupsshowedsignificantseasonalchanges.Thesoilfoodwebconnectancewas0.15,themaximumfoodchainlengthwas5,andtheaveragefoodchainlengthwas3.6.TheprofilesoftheEIandSIshowedthatthefoodwebwasresourcedepletedwithminimalstructure.TheresultsofCIindicatedthatthebacterialdecompositionpathwaywasthedominantpathwayinthefoodwebofthegreenhousesoilsstudiedandtheresultsofBCsimilarityshowedthatthesoilfoodwebhadhig

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