全国100所名校最新高考冲刺卷英语2023届Y1

2023-11-10 03:18:19 43℃

全国100所名校最新高考冲刺卷英语2023届Y1正在持续更新，目前2026届炎德英才大联考答案网为大家整理了相关试题及答案，供大家查缺补漏，高效提升成绩。

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A.Platt is unsatisfied with the results of the studyB.Platt wants to collect more data about the macaquesC.Platt will continue the study on the rhesus macaques.D.Platt will conduct similar studies on other animals.DSocial distancing is nothing new to honey bees.When a colony is infected with the deadly Israeli acuteparalysis virus(IAPV),bees are less likely to touch or feed their sick nest mates,according to a new study.Not much is known about how bees act when infected with viruses.Adam Dolezal,an insect physiologist atthe University of Illinois,who studies IAPV,teamed up with a computer scientist Tim Gernat,who had developedan automated system to monitor bee behavior.They identified a behavior called trophallaxis,in which honey beesfeed their fellow workers by regurgitating (food from their bodies.They put infected bees into their colony.After 5 days of recording,the team found that heathy bees wereavoiding contact with the infected bees.The findings show how bee behavior in a real colony can prevent aninfectionBut the virus appears to have an alarming counterattack ()When sick bees try to enter a new colony,they do a better job of getting past the guards than uninfected bees.That has led the scientists to predict that thevirus has developed a way to spread to new colonies.Bee colonies are usually guarded by bees to keep foreigners out.Guards use their special organs in the head todetect a collection of chemical signals on the outside of their bees,which is used to identify them as members ofthe colony or foreignersAs for why IAPV is so successful at tricking the guards,it might be that it changes the number of variouschemical signals,which differed between the sick and healthy groups.This makes the guards more likely tomisjudge and accept the infected bees.The sick bees were also gentler when challenged by guards and more likelyto offer them food,and those behaviors may also help them spread the disease.IAPV isn't the only pathogen (bees can bring.If IAPV helps other pathogens spread,that could be abig problem for commercial beekeepers who pack colonies together for efficiency."There's very little you can doif you suspect a virus infection,"Dolezal says.Instead,they have got to increase the space between colonies.12.What's true about the colony with infected bees?A.Sick bees don't feed healthy beesB.Infected bees were less likely to be fedC.IAPV made sick bees unable to share food

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