首页
登录
职称英语
Biologists have long debated about whether egg production in birds is biolog
Biologists have long debated about whether egg production in birds is biolog
游客
2025-02-19
17
管理
问题
Biologists have long debated about whether egg production in birds is biologically highly costly, some theorizing that egg production is energetically or nutritionally demanding. Lack, however, suggested that clutch size—the number of eggs a bird lays per breeding cycle—is far below the potential limit of egg production. He suggested that clutch size had instead evolved in relation to the number of young that the parents could successfully rear. Subsequently, most studies focused on limitations operating during chick rearing, particularly among altricial species (species in which the parents feed their young in the nest). Lack later recognized that in precocial species (species in which young feed themselves), clutch size might be explained by different factors—the availability of food for egg-laying females, for example. [br] The passage suggests that Lack would agree with which of the following statements about factors affecting clutch size in birds?
Consider each of the choices separately and select all that apply.
选项
A、In altricial species, clutch size is determined primarily by factors operating after eggs are laid.
B、In precocial species, clutch size is determined primarily by factors operating after eggs are laid.
C、In many bird species, clutch size generally remains well below the potential limit of egg production.
答案
A,C
解析
很多考生看到选项A时会纠结第四句究竟是不是拉克说的。实际上,选项A用第三句就能判断对错。第三句中,拉克认为“能养活多少就生多少”,而根据晚成型鸟类的定义,幼雏需要父母“养活”,因此晚成型鸟类的巢穴大小当然取决于产蛋之后的因素,即“养活能力”,因此选项A正确。C项同义改写第二句。B项根据第五句,早熟型鸟类取决于生蛋过程中雌鸟的营养,选项B错误。
转载请注明原文地址:https://tihaiku.com/zcyy/3964112.html
相关试题推荐
Biologistshavelongdebatedaboutwhethereggproductioninbirdsisbiolog
BiologistsstudyingwildmonkeyssometimesneedthegeneticmaterialDNAfro
Differentpeopleholddifferentviewsastowhetherparentsshouldadoptan
Theincreaseintheproductionofconsumergoodsresultsindamagetothena
Classifythe.followinggroupsofpeopleaccordingtowhethertheybelieveA.
Classifythe.followinggroupsofpeopleaccordingtowhethertheybelieveA.
ROBOTSATWORKAThenewspaperproductionprocesshasco
ROBOTSATWORKAThenewspaperproductionprocesshasco
ROBOTSATWORKAThenewspaperproductionprocesshasco
ROBOTSATWORKAThenewspaperproductionprocesshasco
随机试题
Forwhichofthefollowingyearswasthereanincreaseoverthepreviousyearin
ContrarytocommonbeliefsocialmediawebsitessuchasFacebookdonot【C1】__
关于交易所会员资金划转,下列说法正确的有()。A、当日盈利划入会员结算准备金B、当日亏损从会员结算准备金中扣划C、当日结算时的交易保证金超过昨日结
[originaltext]M:Well,Peggy,whatcanIdoforyoutoday?Howisyourmotherf
热水袋之于()相当于彩色铅笔之于()A.热水;铅笔 B.橡胶;
()是指是指贷款经营的盈利情况,是商业银行经营管理活动的主要动力。A.贷款的安全
对肝硬化诊断最有价值的病理改变是A:肝细胞变性和坏死 B:肝内纤维组织增生
某施工项目有两个工艺方案:方案1需投资2000万元,年生产成本500
B家具木材厂加工车间内用可移动式传送带传送物料,可移动式传送带的驱动电机使用38
(2019年真题)关于工程测量的说法,错误的是()。A.通常机电工程的测量精度
最新回复
(
0
)