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
2024-01-10
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/3349550.html
相关试题推荐
Somepaleontologistsdebatewhetherthediversityofspecieshas(i)______since
Somebiologistsarguethateachspecificallyhumantraitmusthavearisengradua
Whereasbiologistsmustmaintaina(i)_______attitudetowardthesubjectsofth
Biologists(i)____isolatedoceanicislandsliketheGalapagos,because,insuch
Ourbiologicaluniquenessrequiresthattheeffectsofasubstancemustbeverif
DavidBelasco’s1912BroadwayproductionofTheGovernor’sLadycreatedase
BiologistsstudyingwildmonkeyssometimesneedthegeneticmaterialDNAfro
Doyounormallyseefilmsatcinemasoronline? Well,itdependsonwhetherIt
Differentpeopleholddifferentviewsastowhetherparentsshouldadoptan
Thebarchartshowsthepetroleumproductionandconsumptionamong7regions
随机试题
Classificationisauseful______totheorganizationofknowledgeinanyfield.A、
[originaltext]M:Hello,CampusDaily,advertisingdepartment.ThisisMarkspea
风是一种潜力很大的新能源。风能(windenergy)既清洁又可再生,所以越来越受到世界各国的重视。我国的风力资源极为丰富,绝大多数地区的平均风速都在
2019年10月王某通过拍卖行将一幅珍藏多年的字画拍卖,取得拍卖收入600000
强心苷中毒最常见的早期症状是()A.房室传导阻滞 B.Q-T间期缩短
肾在体为A.脉 B.肉 C.皮 D.骨 E.筋
内部控制描述不正确的一项()A.基金管理人的内部控制要求部门设置体现权责明确、
AM点是定轴转动刚体上的一点,M点的运动轨迹是以0为圆心,以
下列进出口商品,检验检疫机构不予受理免验申请的有()。 A.食品B.动植物
汽车维修业是一个竞争性较强的行业,维修价格采用()。A:维修基本价 B:计划调
最新回复
(
0
)