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
2025-03-07
12
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/3986068.html
相关试题推荐
Theworldisnotonlyhungry,itisalsothirstyforwater.Thismayseemst
Theworldisnotonlyhungry,itisalsothirstyforwater.Thismayseemst
Theworldisnotonlyhungry,itisalsothirstyforwater.Thismayseemst
Theworldisnotonlyhungry,itisalsothirstyforwater.Thismayseemst
Howcouldwepossiblythinkthatkeepinganimalsincagesinunnaturalenvir
Howcouldwepossiblythinkthatkeepinganimalsincagesinunnaturalenvir
Howcouldwepossiblythinkthatkeepinganimalsincagesinunnaturalenvir
Inthelonghistoryofnaturalevolution,manykindsofanimalshave______fromth
Ican______youthattheanimalsarewellcaredforinourzoo,soyouneedn’two
Smallasitis,theantisasmuchacreatureas______allotheranimalsonearth
随机试题
Whatkindofcourseisthemanseeking?[br]Whendoesthemanwanttostartthe
DISSERTATIONTIMETABLE[img]2014m8s/ct_eilm_eillist_0125_20142[/img][br]March(
可是,我也愿意升学。我偷偷地考入了师范学校——制服,饭食,书籍,宿处,都由学校供给。However,Iwouldalsoliketofurther
Everygrouphasaculture,howeveruncivilizeditmayseemtous.Tothepro
Scatteredaroundtheglobearemorethan100smallregionsofisolatedvolca
D
酱油和面酱之所有咸味,是来自于某种物质,它就是( )。A.氯化钠 B.氯化钾
I型超敏反应中,IgE吸附于嗜碱性粒细胞和下列哪种细胞表面A.嗜酸性粒细胞B.淋
人在每一瞬间,将心理活动选择了某些对象而忽略了另一些对象。这一特点指的是注意的(
(2015年真题)关于工作分析实施的说法,错误的是()。A.进行工作分析需要先
最新回复
(
0
)