首页
登录
职称英语
Every living thing has what scientists call a biological clock that controls
Every living thing has what scientists call a biological clock that controls
游客
2023-08-28
40
管理
问题
Every living thing has what scientists call a biological clock that controls behavior. It tells plants when to【C1】______flowers and insects when to leave the protective cocoon(茧)and fly away. And it tells animals and human beings when to【C2】______, sleep and seek food. It controls our body temperatures, the【C3】______of some hormones and even dreams.
Events【C4】______the plant and animal affect its actions. Scientists recently found that a tiny animal called Siberain hamster changes the color of its【C5】______because of the number of hours of【C6】______. In shorter days of winter its fur becomes white. The fur becomes gray-brown in longer【C7】______of daylight summer.
【C8】______signals control other biological clocks. German scientists found that some internal one seems to order birds to begin their【C9】______flights two times each year. Birds prevented from flying become【C10】______when it is time for the trip. 【C11】______they become calm again when the time of the flight has ended. A mix of outside and internal events controls some biological clocks; such things as heartbeat and the daily change from sleep to walking take place because of both external and internal signals.
Scientists are beginning to learn【C12】______parts of the brain contain biological clocks. A researcher at Harvard University, Dr. Martin Moore Ede, said a small group of cells near the front of the brain seemed to control the【C13】______of some of our actions. Probably there are other cells to control other body activities. He is studying【C14】______they affect the way we do our work. Most of us have great difficulty if we【C15】______often change to different work hours. It can【C16】______many days for a human body to【C17】______the major change in work hours. Industrial officials should have a better【C18】______of biological clocks and how they affect workers. He said such an understanding could【C19】______sickness and accidents at work, and would help increase【C20】______. [br] 【C5】
选项
A、feather
B、skin
C、fur
D、peel
答案
C
解析
语义衔接题。空所在句的下句中的its fur提示本空答案为[C]。
转载请注明原文地址:https://tihaiku.com/zcyy/2965492.html
相关试题推荐
Fromthehealthpointofviewwearelivinginamarvelousage.Weareimmun
Fromthehealthpointofviewwearelivinginamarvelousage.Weareimmun
Fromthehealthpointofviewwearelivinginamarvelousage.Weareimmun
Fromthehealthpointofviewwearelivinginamarvelousage.Weareimmun
Scientistssaytheyhavehighhopesforadrugthatcouldonedayprovidea
Scientistssaytheyhavehighhopesforadrugthatcouldonedayprovidea
Scientistssaytheyhavehighhopesforadrugthatcouldonedayprovidea
[originaltext]Scientistssaysharkshavelivedintheworld’soceansformi
Forthispart,youareallowed30minutestowriteashortessayentitledLiving
Scientistshavediscoveredstrandsofgeneticcodelinkedtoshortsight,th
随机试题
ForyearsshehadreadTheWallStreetJournaleverymorninginhopesoffinding
HowtoBeaGoodConversationalistAgoodconversationalist
Whatistheprobablerelationshipbetweenthetwospeakers?[br][originaltext]
如何做好农膜回收行动
什么是意义学习?简述实现意义学习的条件。
施工现场环境保护的相关规定有()。A.控制污水排放 B.对施工现场防治扬尘、
近年来.党中央、国务院把大力发展文化产业作为推动文化大发展大繁荣的战略选择之一.
“经济学家以及政治哲学家之思想,其力量之大,往往出乎常人意料。事实上统治世界者,
北方某地区为了应对干旱,居民用水量已经受到严重的限制。不过,目前水库蓄水量与5
下列说法中,属于金融风险管理流程环节的是()。A.风险识别 B.风险评估 C
最新回复
(
0
)