首页
登录
职称英语
The term biological clock is【B1】_____to the means by which living things【B2】
The term biological clock is【B1】_____to the means by which living things【B2】
游客
2024-02-11
23
管理
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】______ [br] 【B11】
选项
答案
Not only has no independent timing system ever been discovered, but there has not yet been even a guess as to its nature
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3442761.html
相关试题推荐
EnvironmentandHealthIssuesWearelivingina
EnvironmentandHealthIssuesWearelivingina
EnvironmentandHealthIssuesWearelivingina
EnvironmentandHealthIssuesWearelivingina
EnvironmentandHealthIssuesWearelivingina
[originaltext]We’vebeenlookingatfearfromabiologicalperspective,and
[originaltext]Therehavebeenmanygreatinventions,thingsthatchangethe
[originaltext]Therehavebeenmanygreatinventions,thingsthatchangethe
__________________(与发达地区相比),people’slivingstandardofthisprovinceisnothi
WhyWeLaughWestartfindingthingsla
随机试题
Inrecentyears,manyAmericansofbothsexesandvariousageshavebecomei
[originaltext]Scientistsarefascinatedbywhattheylearnfromthemethods
为了发展和实现共同富裕的目标,只能采取现在这样的部分先富带后富,逐步达到共同富裕
采用SF6气体作为绝缘介质的高压电气设备有A.变压器 B.断路器
设计反应谱是根据建筑场地类别和建筑物结构()确定的。A.自振加速度 B.自
紫外线杀菌的主要机制是()。A.损伤细胞壁 B.破坏酶系统 C.干扰DNA
开关柜局部放电会产生(____),其会在金属壁形成趋肤效应,并沿着金属表面进行传
A.当磁铁向下靠近金属线圈时,线圈中产生了顺时针的感应电流(俯视),两者之间表现
费用偏差的纠正措施通常包括()。A.组织措施 B.管理措施 C.经济
某县城镇要配套建设相应的现代化水厂,供给居民的日常生活用水和一定的商业服务用水。
最新回复
(
0
)