首页
登录
职称英语
The term biological clock is applied to the means, which living things 【
The term biological clock is applied to the means, which living things 【
游客
2023-07-31
33
管理
问题
The term biological clock is applied to the means, which living things 【M1】______
adjust their activity patterns, without any obvious cue, the time of day, or 【M2】______
the month, or the year. They are affected but little, if at all, by drugs,
chemical, or wide temperature differences—factors may alter substantially 【M3】______
the rates of all ordinary processes of the body.
The nature of the biological clocks mechanism is still a mystery. Two 【M4】______
quite different theories have been advanced to account to them. According 【M5】______
to the first of these theories, each individual have evolved, aided by natural
selection, an adaptation to the rhythmic environment. It has now 【M6】______
become independence on the environment. According to this view, the clocks 【M7】______
are not perfect timers. They require regular corrections by the natural light
and tide cycles and the changed lengths of the day throughout the year. 【M8】______
The other theory holds up living things react continuously to their 【M9】______
rhythmic physical environment. The setting of their biological clocks,
therefore, involves a constant adjustment to subtle clocks are potential 【M10】______
perfect timers. [br] 【M3】
选项
答案
factors ∧→which/that
解析
定语从句中which/that做主语,故不可省略
转载请注明原文地址:https://tihaiku.com/zcyy/2884892.html
相关试题推荐
Nolivingthingcouldsurviveataventexcepttubeworms.[br]Thescientistsn
Nolivingthingcouldsurviveataventexcepttubeworms.[br]Themajorityof
Nolivingthingcouldsurviveataventexcepttubeworms.[br]Before1990,no
Nolivingthingcouldsurviveataventexcepttubeworms.[br]Ventlifediesq
Nolivingthingcouldsurviveataventexcepttubeworms.[br]Whenanewvent
Nolivingthingcouldsurviveataventexcepttubeworms.[br]Itischemicals
[originaltext]Therearesomanythingsgoingoninourmodernlives,andch
[originaltext]Therearesomanythingsgoingoninourmodernlives,andch
[originaltext]Americansoftensaythatthereareonlytwothingsapersonc
[originaltext]Americansoftensaythatthereareonlytwothingsapersonc
随机试题
物品遗失启事说明:以王波的名义写一则物品遗失启事。内容:1.昨日(12月13日)遗失一本笔记本,蓝色封面,内有钢笔一支;2.可
It’sjust8o’clock.Hecan’t______(sleep)atthistimeoftheday.besleeping
[originaltext]Today,I’mgoingtotalkaboutthehealthproblemsrelatedto
各种建筑构件空气声隔声性能的单值评价量是()A.平均隔声量 B.计权隔声量
女性,50岁,因肺癌行右上肺叶切除术。术后24h内最常见的并发症是A.支气管-胸
月龄为3个月的小儿用药剂量为成人的A.1/18~1/14B.1/14~1/7C.
关于超长效胰岛素的叙述不正确的是A.皮下注射起效时间较中效胰岛素慢 B.一般可
典型心绞痛的发作性胸痛持续时间一般为A.1~3分钟 B.3~5分钟 C.5~
A. B. C. D.
水泥混凝土路面的混凝土板的切缝深度不够,压缝距离过大,最有可能造成的病害是(
最新回复
(
0
)