A、By their nerve cells. B、They blink automatically. C、By seeing the mates. D、By the gas nitric oxide. A

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问题

Can you spot the fireflies in this picture? One of the fascinating things about fireflies is their sheer mystery. We know one reason they blink on and off like they do is to attract mates. It’s all about sex.
But how do they control the blinking? In a study published in the journal Science, researchers trace the answer to the nerve cells leading to the firefly’s lantern and the presence of an enzyme that makes the gas nitric oxide.

选项 A、By their nerve cells.
B、They blink automatically.
C、By seeing the mates.
D、By the gas nitric oxide.

答案A

解析

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专业英语八级

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A、By their nerve cells. B、They blink automatically. C、By seeing the mates. D、By the gas nitric oxide. A

专业英语八级

TheCommercialisationofScienceandTechnologyScienceandtechnologyandtheroleofcommercialisationinthatareaarever

A、thedevelopmentoftherubberindustryinMalaysiaB、theimpactofrubberindustryonMalaysiaC、theunevendistributionofwe

TheProblemsofTakingEnglishCoursesThroughEnglishWhenstudentstakecoursesthroughthemediumofEnglish,theyhaveto

Whichofthefollowingisnotacharacterofacquisition?

Eliot’sinterestedinpoetryinabout1902withthediscoveryofRomantic.HehadrecalledhowhewasinitiatedintopoetrybyE

TheperiodofModernEnglishextendsfrom______tothepresentday.

Identicaltwinspossessexactlythesamesetofgenes,yetastheygrowolder,theymaybegintodisplaysubtledifferences.The

SecurityconcernshavepromptedthefederaldepartmentsofStateandHomelandSecuritytotightentheprocessforissuingvisas

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卢梭认为，适合进行道德教育的人生阶段是()

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证明，其中n为自然数．

选择F盘中除“职称考试”文件夹以外的所有文件和文件夹。

WhofoundtheRoyalAcademyofArts?