首页
登录
职称英语
There are exceptions to the rule of male insects being smaller than the fema
There are exceptions to the rule of male insects being smaller than the fema
游客
2025-04-25
9
管理
问题
There are exceptions to the rule of male insects being smaller than the females, and some of these exceptions are intelligible. Size and strength would be an advantage to the males which fight for the possession of the females, and in these cases, as with the stag-beetle (Lucanus), the males are larger than the females. There are, however, other beetles which are not known to fight together, of which the males exceed the females in size, and the meaning of this fact is not known, but in some of these cases, as with the huge Dynastes and Megasoma, we can at least see that there would be no necessity for the males to be smaller than the females, in order to be matured before them, for these beetles are not short-lived, and there would be ample time for the pairing of the sexes. [br] According to the author, ______.
选项
A、male insects are always smaller than females
B、in a given species nature provides differences between sexes to insure successful reproduction
C、size and strength protect females from other females
D、longevity is characteristic of the Dynastes and Megasoma
答案
D
解析
根据作者的观点,长寿是Dynastes和Megasoma这两种甲壳虫的特征。作者在最后一句说,这些甲壳虫生存的时间并不短,这当然是说这两种甲壳虫长寿。
转载请注明原文地址:https://tihaiku.com/zcyy/4052485.html
相关试题推荐
InarecentbookentitledThePsychicLifeofInsects,ProfessorBouviersay
Thereareexceptionstotheruleofmaleinsectsbeingsmallerthanthefema
Thereareexceptionstotheruleofmaleinsectsbeingsmallerthanthefema
Thereareexceptionstotheruleofmaleinsectsbeingsmallerthanthefema
Thereareexceptionstotheruleofmaleinsectsbeingsmallerthanthefema
Whentheairinacertainspaceissqueezedtooccupyasmallerspace,theairi
Againstthewishesofmanysmallercountries,Europeis______astable,ifunde
Themoreanation’scompanies______factoriesabroad,thesmallerthatcountry’s
Pigeonisthecommonnameformembersofafamilyofbirds;smallerspeciesare
Whentheairinacertainspaceissqueezedtooccupyasmallerspace,theairi
随机试题
[originaltext]Moderator:Hello,ladiesandgentlemen.Itgivesmegreatp
图示为对称结构,则a杆的轴力为()。 A.受压 B.受拉 C.0 D.
动态主机配置协议(DHCP)的作用是();DHCP客户机如果收不到服务器分配
在软件开发过程中,系统测试阶段的测试目标来自于()阶段。A.需求分析 B.概
利用凝胶层析法进行分级分离时大多采用的层析柱长度是A:10~20cmB:20~
退休期的理财需求分析包括()。A.保障财务安全 B.储蓄和投资 C.建立信
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定规律性: A.如上
课程实施作为一个动态的序列化的实践过程,具有一定的运行结构。其运行结构有哪些?
孙某居住在某市桥西区朝阳派出所辖区,2019年1月5日因在桥东区销赃被桥东公安分
关于股份和股票的以下表述,不正确的是()。 A.股票可以流通并可以设置质押
最新回复
(
0
)