The population C. The species D. The E. cosystem 相关知识点: 试题来源: 解析 B。解析:在进化理论中,进化的单位是种群。个体不能作为进化的单位,因为个体的变化不能代表整个物种的进化方向。物种是一个分类概念,不是进化单位。生态系统是生物与环境的整体,不是进化单位。语法上是一般现在时对进化理论概念...
Evolution is what's needed, not revolution Sir — In the current debate on web availability of peer-reviewed scientific literature there seems little attempt to retain the advantages of the present system of journals. These are, first, the element of special- ization (the journal's field) and...
1993. Evolution by sexual selection: what can population comparisons tell us? Am. Nat., 141, 796-803.Houde, A. 1993 Evolution by sexual selection: what can popula- tion comparisons tell us? Am. Nat. 141, 796^803.Houde A E. Evolution by sexual selection: what can population comparisons ...
thatlightcandamageoureyesundercertaincircumstances,there?snoscientificevidencesuggestingthatbluelightisharmfultooureyes.But manypeoplestillthinkitis,whichiswhybluelight-blockingglassesaresopopular.Sodothe glasseswork? “Everyoneisveryconcernedthatbluelight maybecausingdamagetotheeye,butthere?sno evidencethatitmaybeca...
Paleofantasy: What Evolution Really Tells Us About Sex, Diet, and How We Live 来自 dx.doi.org 喜欢 0 阅读量: 369 作者: Zuk, M. (Marlene) 摘要: A review of the book "Paleofantasy: What Evolution Really Tells Us About Sex, Diet, and How We Live," by Marlene Zuk is presented.关键...
They always cause over - population in the places they migrate to D. They have no connection with the E. cological balance of the destination ecosystem 相关知识点: 试题来源: 解析 B。解析:选项A说候鸟等迁徙动物在迁徙时破坏当地动物的正常生命周期是不准确的。迁徙动物在进化过程中,当它们迁徙到不...
So could it be that Earth really is unique? All living things on Earth are made of the same building blocks, long carbon-based molecules.所以地球真的是独一无二的吗？地球上所有的生物都有着相同的组成成分，即长碳基分子。Scientists now think that a large proportion of these molecules came from...
A large working class also emerges, and conditions were often much harsher for them. The evolution of labor unions is a direct result of the conditions faced by the powerless workers of the Industrial Revolution.14 What Is Industrial Activity?
What is Evolution? A change in a species over time. The process by which modern organisms have descended from ancient organisms. The Theory of Evolution A scientific theory: Well-supported, testable, explanation of a phenomena that occurs in the natural world. ...
The theory of evolution in biology The theory of evolution is often seen as the theme that encompasses all branches of biology. It includes genetics, population biology, anatomy and physiology, and embryology, among others. While the theory itself developed over time, the principles set out by ...