首页
登录
职称英语
【B1】 [br] 【B10】 [originaltext] According to the evolutionary theory of sleep,
【B1】 [br] 【B10】 [originaltext] According to the evolutionary theory of sleep,
游客
2024-02-14
6
管理
问题
【B1】 [br] 【B10】
According to the evolutionary theory of sleep, evolution equipped us with a regular pattern of sleeping and waking. The theory does not deny that sleep provides some important restorative functions. It merely says that evolution has progammed us to perform those functions at a time when activity would be inefficient and possibly dangerous. However, sleep protects us only from the sort of trouble we might walk into; it does not protect us from trouble that comes looking for us. So we sleep well in a familiar, safe place, but we sleep lightly, ff at all, when we fear that bears will nose into the tent.
The evolutionary theory accounts well for differences in sleep among creatures. Why do eats, for instance, sleep so much, while horses sleep so little? Surely eats do not need five times as much repair and restoration as horses do. But cats can afford to have long periods of inactivity because they spend little time eating and are unlikely to be attacked while they sleep. Horses must spend almost all their waking hours eating, because what they eat is very low in energy value. Moreover, they cannot afford to sleep too long or too deeply, because their survival depends on their ability to run away from attackers.
选项
答案
Surely cats do not need five times as much repair and restoration as homes do
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3450254.html
相关试题推荐
[originaltext]Ihaveanannouncementtomakebeforewestartclass.I’mloo
[originaltext]Ihaveanannouncementtomakebeforewestartclass.I’mloo
[originaltext]Ihaveanannouncementtomakebeforewestartclass.I’mloo
[originaltext]TheCivilWarcameaboutasaresultofmanydifferencesbetw
[originaltext]M:Doyouknowwhathappenedtometoday?Iwassoembarrassed.W
[originaltext]M:Doyouknowwhathappenedtometoday?Iwassoembarrassed.W
[originaltext]M:Doyouthinkpeopletodaydoagoodjobofplanningforfinanc
[originaltext]Whenasleepydriverhastroubleinkeepinghiseyesonther
[originaltext]Somemonthsagomyfriendboughtanewrefrigerator,butbeca
[originaltext]Anoldfriendfromabroad,whomIwasexpectingtostaywith,
随机试题
[originaltext](1)Withbighandbagsbecomingakeyfashionaccessoryforworking
I________at130kilometersperhourwhenthepolicemanstoppedme.A、haddrivenB
在我国无论是南方还是北方,市政管线埋深均超过1.5m的是()。A:给水管道
外阴癌肿物局限于右侧大阴唇,肿物直径为2cm,未发现淋巴结转移,临床分期为A、Ⅰ
手厥阴心包经的郄穴是()A.阴郄 B.郄门 C.孔最 D.温溜
变压器的负序和正序阻抗是相等
某商业银行表外有一笔原始期限少于1年的贷款承诺1000万元,在采用权重法计算信用
阅读材料回答下列问题:一般资料:求助者,女性,36岁,本科文化程度,无业。案例介
关于分部分项工程量清单项目与定额子目关系的说法,正确的是()。A.清单项目与定额
焊接工艺过程中,正确的焊条选用方法为( )。A.合金钢焊接时,为弥补合金元素烧损
最新回复
(
0
)