首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
The term biological clock is【B1】_____to the means by which living things【B2】_____their activity patterns, without any【B3】_____cu
The term biological clock is【B1】_____to the means by which living things【B2】_____their activity patterns, without any【B3】_____cu
admin
2013-07-10
43
问题
The term biological clock is【B1】_____to the means by which living things【B2】_____their activity patterns, without any【B3】_____cue, to the time of day, or the month, or the year. The biological clocks seem to be beautifully【B4】_____to the needs of living things. They are【B5】_____ but little, if at all, by drugs, chemicals, or wide temperature difference—factors which may alter substantially the rates of all ordinary【B6】_____ of the body.
The nature of the biological clocks’ mechanism is still a【B7】_____. Two quite different theories can【B8】_____ for them. According to the first of these theories, 【B9】______. This is believed to have evolved, aided by natural selection, as an adaptation to the rhythmic environment. It has now become independent of the environment. 【B10】______. The setting of their biological clocks, therefore, involves a constant adjustment to subtle environment forces. But the search for the specific timing system has been futile thus far. 【B11】______
【B6】
选项
答案
processes
解析
转载请注明原文地址:https://kaotiyun.com/show/bH07777K
0
大学英语四级
相关试题推荐
A、Bydiggingsite.B、Byreconstructingskeletons.C、Byobservingthemclosely.D、Bylivingwiththem.B文章中提到通过重组骨架,科学家能获知恐龙的生活条件
A、Underapieceofstone.B、Underthewindow.C、Inthekitchen.D、Neartheliving-room.AWhendidthespeakerputhiskey?
A、Thatdrugsshouldnotbeusedwithoutdoctorsadvice.B、Thatdrugsandsubstancesaredifferent.C、Thatsubstancesshouldbeu
A、Differentculturesandcustoms.B、Thewoman’sfirstyearatuniversity.C、Thingsthatthewomanisdoingnow.D、Theforeignro
Societieschangeovertimewhiletheirreputations【C1】______behind.Manythingswhichareoftenregardedas【C2】______Britishder
Societieschangeovertimewhiletheirreputations【C1】______behind.Manythingswhichareoftenregardedas【C2】______Britishder
Societieschangeovertimewhiletheirreputations【C1】______behind.Manythingswhichareoftenregardedas【C2】______Britishder
Societieschangeovertimewhiletheirreputations【C1】______behind.Manythingswhichareoftenregardedas【C2】______Britishder
Societieschangeovertimewhiletheirreputations【C1】______behind.Manythingswhichareoftenregardedas【C2】______Britishder
随机试题
女孩,7岁,高热12小时,伴有头痛、关节痛、呕吐。体检:表隋呆钝,面色青灰,全身散在出血点,颈抵抗不明显,血压9/6kPa,脑脊液细胞数160×106/L,蛋白微量,糖2.24mmol/L,氯化物101mmol/L。与该患儿密切接触的表妹应如何预防
1955年的GDP当年价计算为3980亿元;1965年的GDP以当年价计算为6760亿元。相应的价格指数1955年为91。1965年为111,那么,1955年与1965年的GDP实际值
电镜下见肾小球脏层细胞足突融合的是
下列组合,错误的是
关于肾脏的叙述,错误的是
仲裁机构受理纠纷的前提是( )。
采用旋喷桩处理软土地基时,可作为加固料的材料有()。[2006年真题]
以下属于重点技术发展线路分析方法的有()。
根据所给资料,回答问题。2015年,中国创新指数为171.5,比上年增长8.4%,增幅为十年来最高。四个创新分领域21个指标中,有19个指标呈现增长态势,其中6个指标增速达到两位数以上,表明经济发展进入新常态情况下,我国在推进动能转换、结构转型和
网桥运行在______。
最新回复
(
0
)