How does natural selection lead to human evolution? Explain what the mechanisms of evolution are: 1.) natural selection 2.) non-random mating 3.) mutation 4.) genetic drift 5.) and migration (gene flow). When will natural selection occur?
B 正确答案:B解析:细节题 答案在第一段的中间部分:一系列小的特征变化将不断累积,最终诞生的生物将会与其祖先存在很大差异,从而成为新的物种(…a series of small differences…they would constitute a new species.)。A,C,D三项也包含文章中已出现的词语,因此具有迷惑性,但根据上下文不难看出答案是B项。反馈...
A. Genetic variation B. Inheritance C. Mutation D. Genetic recombination 相关知识点: 试题来源: 解析 A。中文解析:文章最后提到“And in evolutionary biology, genetic variation provides the raw material for natural selection...”,在进化生物学中,遗传变异为自然选择提供了原材料。反馈 收藏 ...
unit of natural selectionThe gene as the solution to the debate over the level at which natural selection acts has often been termed as too reductionist, but is this a valid criticism? Exploring this question in the context of nonlinearity illuminates not only the debate over the unit of ...
Natural selection applied in a financial context assumes that companies that are able to adapt will thrive, while those who fail to adapt may face a shrinking market share or bankruptcy in the long term. Understanding Natural Selection One of the most well-known examples of natural selection in...
Video: Natural Selection | Types, Diagram & Examples Video: Selective Pressure | Definition, Types & Example Video: Reproductive Isolation | Definition, Types & Examples Catherine S. Student Jefferson, Missouri Create an Account There are so many options on Study.com! I can research almost any...
试题来源: 解析 B。解析:文中提到“Natural selection is the process by which organisms that are better adapted to their environment are more likely to survive and reproduce.”,自然选择是那些更适应环境的生物体更有可能生存和繁殖的过程。反馈 收藏 ...
Species evolve through natural selection. What is natural selection? A. a process by which organisms with favorable traits survive and reproduce B. a method of artificial breeding C. a random event D. a process of rapid change 相关知识点: ...
What are the four principles of natural selection? Explain what the mechanisms of evolution are: 1.) natural selection 2.) non-random mating 3.) mutation 4.) genetic drift 5.) and migration (gene flow). Who developed the theory of evolution by natural selection? What are the four ...
Natural Selection:Natural selection is the mechanism through which evolution occurs. Through natural selection, animals possessing adaptations (or favorable traits) are able to survive and reproduce and pass on their traits to their offspring. Over time, this leads to evolution....