首页
登录
职称英语
The term biological clock is applied to the means by which living things adj
The term biological clock is applied to the means by which living things adj
游客
2024-02-04
42
管理
问题
The term biological clock is applied to the means by which living things adjust their activity patterns, without any【B1】______ cue, to the time of day, or the month, or the year. The biological clocks seem to be beautifully【B2】______ the needs of living things. They are affected but little, if at all, by drugs, chemicals, or wide temperature difference —【B3】______ which may alter substantially the rates of all ordinary processes of the body.
The nature of the biological clocks’【B4】______ is still a mystery. Two quite different theories can【B5】______ them. According to the first of these theories, each individual contains its own independent timing system. This is believed to have【B6】______, aided by natural selection, as an adaptation to the rhythmic environment. It has now become independent of the environment. The other theory holds that living things react【B7】______ to their rhythmic physical environment. The setting of their biological clocks, therefore,【B8】______ a constant adjustment to subtle environment forces. But the search for the【B9】______ timing system has been futile thus far. Not only has no independent timing system ever been discovered, but there has not yet been even a guess【B10】______ its nature. [br] 【B4】
选项
答案
mechanism
解析
根据空格前的所有格clocks’可知,此空需要名词。mechanism“机制”。
转载请注明原文地址:https://tihaiku.com/zcyy/3420793.html
相关试题推荐
[originaltext]Withgrowingnumbersofpeoplelivingalone,eitherbychoice
[originaltext]Withgrowingnumbersofpeoplelivingalone,eitherbychoice
[originaltext]Withgrowingnumbersofpeoplelivingalone,eitherbychoice
Differentthingsusuallystandfordifferentfeelings.Red,forexample,is
Differentthingsusuallystandfordifferentfeelings.Red,forexample,is
Differentthingsusuallystandfordifferentfeelings.Red,forexample,is
Differentthingsusuallystandfordifferentfeelings.Red,forexample,is
[originaltext]Wearenowlivinginaworldinwhichrobotsaretakingover
[originaltext]Wearenowlivinginaworldinwhichrobotsaretakingover
Lookingforanewweightlossplan?Trylivingontopofamountain.Mountai
随机试题
与2001年相比,2007年工业地价增长率提高了:() A.8倍 B.3
()既是居住小区的主要技术经济指标,也是民用建筑的主要技术经济指标。A.建筑
水泵气穴和气蚀的危害主要是:产生噪声和振动,引起( ),材料的破坏,缩短水泵使
急进性肾小球炎I型患者血浓度常升高的抗体是:A.抗肾小球基底膜抗体 B.抗核抗
某单位初次申请测绘资质,按照《测绘资质管理规定》,下列专业范围中,可以受理甲级测
某宗房地产的收益期限为8年,未来第一年的有效毛收入为80万元,运营费用为45万元
(2015年5月)提高绩效面谈质量必须采取有效的信息反馈方式,并且使其具有针对性
人民代表大会制度是 A.中国人民当家作主的重要途径 B.中国人民当家作主的最
符合白细胞吞噬作用的描述是A.IgG和C3b增强白细胞吞噬活性 B.活性氧代
(2016年真题)某女,42岁。经血淋漓不断月余,气短懒言,倦怠乏力,面色苍白。
最新回复
(
0
)