首页
登录
职称英语
In the wild, the sense of smell fulfils animals basic needs, like the search
In the wild, the sense of smell fulfils animals basic needs, like the search
游客
2023-12-08
66
管理
问题
In the wild, the sense of smell fulfils animals basic needs, like the search for food. A hungry polar bear living in a barren and frozen landscape can smell the carcass of a seal over great distances, and it can also tell from the smell whether the carcass is going to be fit to eat or not.
Animals that live on land receive scent messages through the air, but scents can be detected in water too. Sharks have a highly efficient sense of smell, and the hammerhead shark has evolved its strange shaped head in order to make it an even more efficient hunter. The hammerhead can detect blood at several hundred meters. It has nostrils at each end of its T-shaped head, and by moving its head from side to side it can home in on its prey, by following the stronger of the two scent signals.
选项
答案
在荒野,嗅觉能满足动物的基本需求,如觅食。一只生活在荒芜的冰冻地带的饥饿的北极熊能够嗅到远处的海豹尸体,而且它还能从气味上判断这尸体能否食用。
生活在陆地上的动物通过空气接受气味信息,但气味在水中同样能被察觉。鲨鱼具有高度灵敏的嗅觉,槌头双髻鲨的头部已进化成奇特的形状,这使它成为一名更高明的猎手。槌头双髻鲨可嗅到几百米外的血腥味。它在T形头部的两侧各有一个鼻孔,通过左右摆动,追踪两个气味信号中较强的一个,找到猎物.
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3255473.html
相关试题推荐
AmericanGroupDynamicsToday,inWesternresearchinstitutesa
AmericanGroupDynamicsToday,inWesternresearchinstitutesa
AmericanGroupDynamicsToday,inWesternresearchinstitutesa
AmericanGroupDynamicsToday,inWesternresearchinstitutesa
AmericanGroupDynamicsToday,inWesternresearchinstitutesa
Researchshowsthateveryonedreamsquitefrequentlyeverynight.Weusually
Researchshowsthateveryonedreamsquitefrequentlyeverynight.Weusually
Researchshowsthateveryonedreamsquitefrequentlyeverynight.Weusually
Researchshowsthateveryonedreamsquitefrequentlyeverynight.Weusually
Researchshowsthateveryonedreamsquitefrequentlyeverynight.Weusually
随机试题
ShortStoriesisgoingtobepublishedsoon.Thisbookisdesignedtohelpb
[originaltext]NotenoughAmericanstudentswanttobeengineers,mathematic
在寒冷的冬天,大雪过后我们通常会看到路面上被撒上一层盐,这样做能够加速融雪。这是
本着“内心的要求”从事文学活动的新文学社团是()A.文学研究会 B.语丝社
某国有资金投资占控股地位的市政立交桥建设项目,施工图设计文件已经相关行政主管部门
投保安装工程一切险时,安装施工用机器设备的保险金额应按()计算。A:实际价值
水工程建设规划同意书是()依法核发的A、水行政主管部门 B、质量监督部门 C
违法发放贷款罪的主体是特殊主体,即银行或者其他金融机构及其工作人员。
(2018年真题) 公司投资于某项长期基金,本金为5000万元,每季度可获取现金
对于一位就诊的精神疾病患者,精神病学家较多使用评估其人格特点的测验为A.WAIS
最新回复
(
0
)