首页
登录
职称英语
Animals seem to have the sense to eat when they are hungry and they do not e
Animals seem to have the sense to eat when they are hungry and they do not e
游客
2024-01-17
38
管理
问题
Animals seem to have the sense to eat when they are hungry and they do not eat more than their bodies need. It has been demonstrated that rats will, when given a choice over a period of time , prefer water with vitamins to water without vitamins even though there is no difference in taste or smell between the two water bottles. When a fragrant flavor was added to the vitamin enriched fluid, the rats did seem to develop a taste for it and kept drinking it, even after the vitamins were switched to the clear water. In time, however, they broke the habit and went back to where the necessary vitamins were.
In a classic experiment, babies of 6 to 12 months old were placed in a cafeteria feeding arrangement, with a wide selection of baby food before them. They were given whatever food they pointed to or appeared interested in. We are told that at first they showed some unusual eating patterns, but that over a period of time they managed to select well-balanced diet.
So, in selecting food, rats and babies do seem to know and act on what’s best for them. Apparently, there is a kind of" body wisdom" , which humans soon lose. Most of us do not eat as wisely as we could. Many of our food preferences are culturally determined and influenced by long-established habits. Some people eat fox, dog and blackbirds, while we eat cows and pigs. So what people eat and how much they eat seem to be greatly influenced by what is going on around them. [br] In the experiment on rats, a fragrant flavor was added to the rat’s drinking water to( ).
选项
A、encourage rats to drink vitamin-enriched water
B、find out rats preference in flavor
C、test whether rats know which drink is good for them
D、demonstrate that vitamins aretasteless
答案
C
解析
细节题。答案在文章第一段“It has been demonstrated that rats will,when given a choice over a period of time,prefer water with vitamins to water without vitamins even though there is no difference in taste or smell between the two water bottles.”
转载请注明原文地址:https://tihaiku.com/zcyy/3371506.html
相关试题推荐
[originaltext] EverysecondintheUSalone,morethan250animalsareslaught
[originaltext] EverysecondintheUSalone,morethan250animalsareslaught
[originaltext] Manyanimalsrecognizetheirfoodbecausetheyseeit.Sodohu
Manhasinventedwaystokeepwarm,buthowdoanimalsdefendthemselves?Th
Manhasinventedwaystokeepwarm,buthowdoanimalsdefendthemselves?Th
Manhasinventedwaystokeepwarm,buthowdoanimalsdefendthemselves?Th
Manhasinventedwaystokeepwarm,buthowdoanimalsdefendthemselves?Th
Fiftyyearsago,wealthypeoplelikedbuntingwildanimalsforfun________sigh
Someanimalscan______inthedesertonverylittlewater.A、surviveB、starveC、re
Theworldisnotonlyhungry,itisalsothirstyforwater.Thismayseemst
随机试题
[originaltext]Terry:Wellwhathavewegotthismorning?ThefirstthingIthin
Themanagerofthecompanyinsistedthatallthestaffmembers______thenewsa
[originaltext]Thewaytocomplainistoactbusiness-likeandimportant.If
WhenyoumakeyourtravelarrangementtoOxford,Ohio,youshouldmakeplans
我国国内信令网,信令点的编码计划是()位二进制数。A.12 B.18 C
(2013年)位于某县城的一化工厂,2012年1月企业土地使用证书记载占用土地的
美国主要债券评级机构包括() Ⅰ.穆迪 Ⅱ.标准普尔 Ⅲ.惠誉国际 Ⅳ
房屋委托交易中可能存在的风险有( )。A.价格变动风险 B.资金安全风险
采用公司形式的评估机构,应当有( )名以上评估师和( )名以上股东。A.2,2
发生重大传染病疫情时,受调集参加疫情控制工作的对象应当是( )。A.国家工作人
最新回复
(
0
)