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
33
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:http://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
PurpleCloudMountainPurpleCloudMountain,whosena
ItwasexpectedthattheSenatewould______thebillbyabout60to40.A、disagree
岩棉是由下列哪种精选的岩石原料经高温熔融后加工制成的?( )A.白云岩 B.
全站仪只需安置一次,仪器便可完成测站上的所有测量工作。
在光纤测试过程中,存在强反射时,使得光电二极管饱和,光电二极管需要一定的时间由饱
黑龙江省山地占全省总面积的(),海拔多为300-1000米。A.38% B.4
患者,男性,55岁。慢性肾小球肾炎10年,1周前受凉后出现食欲减退,恶心、呕吐,
以客户累计百分比为横轴、()为纵轴,分别做出理想评级模型、实际评级模型、随即
已满十四周岁不满十六周岁的人,犯()罪的,应当负刑事责任。A.投放虚假危险物质
A
最新回复
(
0
)