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
2024-02-03
16
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] 【B3】
选项
答案
factors
解析
根据空格后的定语从句可知,此空应填名词作定语从句的先行词。factor“因素”,注意不要忘了词尾加-s。
转载请注明原文地址:https://tihaiku.com/zcyy/3419477.html
相关试题推荐
Differentthingsusuallystandfordifferentfeelings.Red,forexample,is
Differentthingsusuallystandfordifferentfeelings.Red,forexample,is
Differentthingsusuallystandfordifferentfeelings.Red,forexample,is
Differentthingsusuallystandfordifferentfeelings.Red,forexample,is
Differentthingsusuallystandfordifferentfeelings.Red,forexample,is
[originaltext]Wearenowlivinginaworldinwhichrobotsaretakingover
[originaltext]Wearenowlivinginaworldinwhichrobotsaretakingover
Lookingforanewweightlossplan?Trylivingontopofamountain.Mountai
Lookingforanewweightlossplan?Trylivingontopofamountain.Mountai
Differentthingsusuallystandfordifferentfeelings.Red,forexample,is
随机试题
Topreventthespreadoftheepidemic,thepublichealthorganizationcarriesou
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecauseofr
WhenMomandDadGrowOldA)Theprospectoftalkingtoincreasinglyfragil
关于出版物的属性,说法正确的是( )。A.出版物既具有精神产品属性,又具有物质
The_______isdesignedaccordingtothem
与术后尿路感染无关的因素是A.尿潴留 B.饮水过多 C.留置导尿 D.水分
身处教育实践第一线的研究者与受过专门训练的科学研究者密切协作,以教育实践中存在的
“建国君民,教学为先”这句话反映了()。 A.教育与政治的关系 B.教育与经
某公司承接一段隧道工程,采用盾构法施工隧道起始里程桩号为k3+780m,终点里
丙型肝炎的临床表现特点少见的是A.发生重型肝炎 B.肝炎症状相对较轻 C.慢
最新回复
(
0
)