首页
登录
职称英语
Lightning bugs can blink themselves because of a chemical substance [br] [origi
Lightning bugs can blink themselves because of a chemical substance [br] [origi
游客
2024-10-10
9
管理
问题
Lightning bugs can blink themselves because of a chemical substance [br]
Lightning bugs are one special species in nature, they have own feature in the abdomen of their bodies, in which there is a chemical substance. And they can light them up and control when they blink and how long they blink.(12)But why lightning bugs light up? The following reasons may account for this. They are basically to find a mate. It’s a way that lightning bugs communicate with each other. They use their blinking signals to attract each other.(13)The female lightning bugs have brighter and stronger light, because they are the ones who are trying to attract males to them.(12)And different species of lightning bugs have different patterns of flashing light to attract their own species. For example, if there are five different species of lightning bugs all in the same field, they can tell who is their same species and who is not.(12)On other condition, lightning bugs light up when they see their enemies. They aim to frighten and warn the enemies by doing this. Some researchers once made experiments on mice in 1997; they confirm that light given off by lightning bugs plays a warning role on mice. This result of research is beyond people’s expectation.
选项
A、Because they have different physical construction.
B、Because they are more offensive than male lightning bugs.
C、Because they want to frighten their enemies.
D、Because they try to attract males to them.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3795108.html
相关试题推荐
Therecitalwasputoffbecausewe______arecitalwithoutMary,whohadalwaysb
Scientistsreportedthatmorethan320kindsofchemicalcomponents______inth
Lightningbugscanblinkthemselvesbecauseofachemicalsubstance[originaltex
Asitwas,theDemocratswouldcontrolthefederalgovernment______becauseofth
Becauseofthe______ofitsideas,thebookwasinwidecirculationbothathome
Tomwasn’tpaidbecausehewasthe______secretaryoftheassociation.A、honorable
Accordingtothenews,theindoorsmoking-banmovementstalledbecause[original
Creationistsaredeeplyenamoredofthefossilrecord,becausetheyhavebee
Creationistsaredeeplyenamoredofthefossilrecord,becausetheyhavebee
Heseemstobe______unhappybecausetheydidnottakehisadvice.A、atrifleB、
随机试题
A.SettingandstoryB.TitleC.ReasonsforrecommendingitD.Directorandsta
Languagelearningbeginswithlistening.Individualchildrenvarygreatlyi
Bynow,howtheimmunesystemisaffectedbystresshasbeenwell-documented
某金店(增值税一般纳税人)2019年5月发生如下业务: 已知:贵重首饰及珠
女性,35岁,患甲状腺功能亢进症2个月,口服他巴唑30mg/d4周,高热、咽痛
立克次体感染应首选的药物为A.四环素 B.青霉素G C.链霉素 D.磺胺嘧
A.处方 B.普通处方、急诊处方、儿科处方 C.中药饮片处方 D.麻醉药品
标志着清政府预备立宪骗局破产记录的立宪活动是( )。 A.颁布《钦定宪法大纲
为防止火灾爆炸的发生,阻止其扩散和减少破坏。防火防爆安全装置及技术在实际生产中广
45S-rRNA是A.其仅可加工成28S-rRNA及18S-rRNA两种 B.
最新回复
(
0
)