问题详情

D
Thereareanextremelylargenumberofantsworldwide.Eachindividual(个体的)anthardlyweighanything，butputtogethertheyweighroughlythesameasallofmankind．Theyalsolivenearlyeverywhere，exceptonfrozenmountaintopsandaroundthepoles.Foranimalstheirsize，antshavebeenastonishinglysuccessful，largelyduetotheirwonderfulsocialbehavior.
Incolonies(群体)thatrangeinsizefromafewhundredtotensofmillions，theyorganizetheirliveswithacleardivisionoflabor.Evenmoreamazingishowtheyachievethisleveloforganization.Whereweusesoundandsighttocommunicate，antsdependprimarilyonpheromone(外激素)，chemicalssentoutbyindividualsandsmelledortastedbyfellowmembersoftheircolony.Whenanantfindsfood，itproducesapheromonethatwillleadothersstraighttowherethefoodis.Whenanindividualantcomesunderattackorisdying，itsendsoutanalarmpheromonetowarnthecolonytoprepareforaconflictasadefenseunit.
Infact，whenitcomestotheartofwar，antshavenoequal.Theyarecompletelyfearlessandwillreadilytakeonacreaturemuchlargerthanthemselves，attackinginlargegroupsandovercomingtheirtarget.Suchistheirdevotiontothecommongoodofthecolonythatnotonlysoldierantsbutalsoworkerantswillsacrificetheirlivestohelpdefeatanenemy.
Behavinginthisselflessanddevotedmanner，theselittlecreatureshavesurvivedonEarth，formorethan140millionyears，farlongerthandinosaurs.Becausetheythinkasone，theyhaveacollective(集体的)intelligencegreaterthanyouwouldexpectfromitsindividualparts.
根据材料回答68-71题。Wecanlearnfromthepassagethatantsare____________.
A.notwillingtosharefood
B.notfoundaroundthepoles
C.moresuccessfulthanallotheranimals
D.toomanytoachieveanyleveloforganization
请帮忙给出正确答案和分析，谢谢！