首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
In the past few decades, remarkable findings have been made in ethology, the study of animal social behavior. Earlier scientists
In the past few decades, remarkable findings have been made in ethology, the study of animal social behavior. Earlier scientists
admin
2011-05-29
40
问题
In the past few decades, remarkable findings have been made in ethology, the study of animal social behavior. Earlier scientists had【21】that nonhuman social life was almost totally instinctive or fixed by genetics. Much more careful observation has shown that【22】variation occurs among the social ties of most species, showing that [earning is a part of social life. That is, the【23】are not solely fixed by the genes.【24】, the learning that occurs is often at an early age in a process that is called imprinting. Imprinting is clearly【25】instinctive, but it is not quite like the learning of humans, it is something in between the two. An illustration best【26】the nature of imprinting. Once, biologists thought that ducklings followed the mother duck because of instincts. Now we know that. shortly【27】they hatch, ducklings fix【28】any object about the size of a duck and will henceforth follow it. So ducklings may follow a basketball or a briefcase if these are【29】 for the mother duck at the time when imprinting occurs. Thus, social ties can be considerably【30】, even ones that have a considerable base【31】by genetics.
Even among the social insects something like imprinting【32】influence social behavior. For example, biologists once thought bees communicated with others purely【33】instinct. But, in examining a "dance" that bees do to indicate the distance and direction of a pollen source, observers found that bees raised in isolation could not communicate effectively. At a higher level, the genetic base seems to be much more for an all-purpose learning rather than the more specific responses of imprinting. Chimpanzees, for instance, generally【34】very good mother but Jane Goodall reports that some chimps carry the infant. upside down or【35】fail to nurture the young.
选项
A、not
B、only
C、but
D、solely
答案
A
解析
根据上下文,“印象”不是天生的,而是经过学习得到的。solely意为“独自地,单独地”。
转载请注明原文地址:https://jikaoti.com/ti/8H5YFFFM
0
考博英语
相关试题推荐
Wednesday’sSalesMeetingwillbegin15minutesearlierthanplanned—boardroomasusual.Whathaschanged?
Areyoualwayssureyouknowwhatpeoplemeanwhentheytrytodescribetheirfeelingstoyou?Weusebothwordsandgesturesto
Areyoualwayssureyouknowwhatpeoplemeanwhentheytrytodescribetheirfeelingstoyou?Weusebothwordsandgesturesto
Areyoualwayssureyouknowwhatpeoplemeanwhentheytrytodescribetheirfeelingstoyou?Weusebothwordsandgesturesto
Areyoualwayssureyouknowwhatpeoplemeanwhentheytrytodescribetheirfeelingstoyou?Weusebothwordsandgesturesto
Theevolutionofsexratioshasproduced,inmostplantsandanimalswithseparatesexes,approximatelyequalnumbersofmalesa
TheGreek’sloftyattitudetowardscientificresearch—andthescientists’contemptofutility—wasalongtimedying.Foramill
TheGreek’sloftyattitudetowardscientificresearch—andthescientists’contemptofutility—wasalongtimedying.Foramill
随机试题
VBA中定义符号常量使用的关键字是( )。
血吸虫卵引起的急性虫卵结节内浸润的细胞为
暴发型流脑(休克型)的典型表现不包括
我国大华公司向美国小山公司发出传真稿:“急购一级田纳西大米2000吨,每吨500美元CⅣ深圳,2001年12月9日至21日装船”。美国小山公司回电称:“完全接受你方条件,2001年12月4日装船”。双方的合同是否成立?
设备监造与施工监理的不同点包括()。
建筑物基础埋深指的是()。
施工单位处置施工过程中产生的废水、废物的下列做法中,符合环境保护相关法律法规规定的是( )。
A、 B、 C、 D、 C
[*]
A、Theirtastymeat.B、Theprincipleoftheirdefensesystemagainstdisease.C、Theirsolidskin.D、Theprincipleoftheirbirth
最新回复
(
0
)