B3.2Transportsystemsinplantsandanimals植物和动物的运输系统

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1、B3.2Transportsystemsinplantsandanimals植物和动物的运输系统6Thisquestionisaboutthebloodsystem.(a)Paulisinvestigatinghispulserate.Hewaitsuntilhehasbeensittingstillfor10minutes.Hethencountsthepulseinhiswrist.Hecounts17pulsesin15seconds.Whatishispulserateperminute?

2、...............................................perminute[1](b)Paulthenexercisesfortwominutesbyrunningaroundtheschoolfield.Hethensitsdownagainandmeasureshispulserateeveryminute.Afteranotherfiveminuteshispulseratereturnstonormal.HowwouldyouexpectPaul’sp

3、ulseratetochangewhenheexercisesandthensitsdown?Showyouranswerbycompletingthelineonthegraph.[2](c)Yourpulseiscausedbyyourheartbeating.Sometimestheheartdoesnotworkproperlyandhastobetreated.Drawastraightlinetomatcheachheartconditionwithitscorrecttreatmen

4、t.Drawtwolinesonly.[2][Total:5]9Lookatthepictureofhumanblood.(a)Completethelabelstoshowwhatjobeachpartdoes.Choosefromthislist.releasesenergytransportsoxygentransmitsnerveimpulsescontrolsinfectionclotsblood[3](b)Nina’sbloodgroupisAB.Fivedifferentstuden

5、tswereaskedtoexplainwhatthismeans.Thesearetheiranswers.Somearecorrectandsomearenot.Ninahas...UsetheanswerstohelpyouexplainwhatbeingbloodgroupABmeans.......................................................................................................

6、.........................................................................................................................................................................................[2](c)Ninahasadoublecirculatorysystem,likeallmammals.Whichofthedia

7、grams,A,B,CorD,showsNina’sdoublecirculatorysystem?answer..............................Explainyouranswer....................................................................................................................................................

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