首页
登录
职称英语
[originaltext] One of the reasons for our success as a species is our abilit
[originaltext] One of the reasons for our success as a species is our abilit
游客
2023-07-22
44
管理
问题
One of the reasons for our success as a species is our ability to eat and thrive on a large variety of foods. Many animal species have become extinct or are on the edge of extinction partly because they lack this adaptability. They need to feed on a particular kind of plant or a particular kind of animal or insect. If this source of food is for any reason re- moved, then the animal concerned is unable to change to a different diet. Gradually it becomes extinct. We know that many animal species have died out, but so have some human species such as the early form of mall that is called Neanderthal man. Perhaps part of the reason for his failure to survive was his lack of adaptability in diet. But modern man is almost entirely free from the limitation of any particular food requirements. We are able to survive on a wide variety of foods both animal and vegetable. For example, the Eskimos are almost totally meat eaters: seal, bear, whale meat and fish form their whole diet; the Aborigines of Australia, living in dry desert regions, have learnt to survive by making use of forms of insect life as food to supplement their diet of fruits and roots. Men have learnt to survive in the deserts and in dense rain forests; they have learnt to raise domestic animals, which live at high altitudes so that they can inhabit the mountainous regions of the world like Tibet; and they have made the coconut their chief food on the Pacific islands.
选项
A、A very popular food plant:
B、A plant with limited uses.
C、A food plant which has been thoroughly used.
D、A plant used as a main food on the Pacific Islands.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2857903.html
相关试题推荐
[originaltext]Slanghasalwaysbeentheprovinceoftheyoung.Wordscomei
[originaltext]Theworddownsizing,bothanexcuseandnotaveryhappyeuph
[originaltext]M:Whichuniversitydoyouthinkyou’dliketoattend?W:Well,I
[originaltext]M:Whichuniversitydoyouthinkyou’dliketoattend?W:Well,I
[originaltext]W:Haveyoubeentothenewsportscentreyet?M:Icertainlyhav
[originaltext]W:Haveyoubeentothenewsportscentreyet?M:Icertainlyhav
[originaltext]W:Haveyoubeentothenewsportscentreyet?M:Icertainlyhav
[originaltext]IntheUnitedStates,boysandgirlsstartschoolwhentheya
[originaltext]IntheUnitedStates,boysandgirlsstartschoolwhentheya
[originaltext]IntheUnitedStates,boysandgirlsstartschoolwhentheya
随机试题
HorsemanshipReturnedA)Bridgeport,Calif.Themene
ShoppinghabitsintheUnitedStateshavechangedgreatlyinthelastquarte
2000年4月,()档案馆试办了全国首家文件档案资料服务中心。A.广东省深圳市
美是纯洁道德、丰富精神的重要源泉。下列关于美育的表述,错误的是( )。A.美育
如图4所示,玻璃管内封闭了一定质量的气体,气柱长度为ι,管内外水银面高度差为h。
注:1.农村金融机构包括农村商业银行、农村合作银行、农村信用社和新型农村
烙画古称“火针刺绣”,是一门传承千年的艺术。烙画以火为“墨”,用火烧热特制铁笔,
每张中成药处方可以开具的药品种类最多的是A.2种 B.3种 C.5种
下列要素中,属于麦肯锡公司提出的7s模型中软件要素的有()A.人员 B.制度
男,17岁,水肿1周,辅助检查:尿蛋白(+++),尿沉渣镜检:红细胞0~1/HP
最新回复
(
0
)