For natural selection to occur, there needs to be trait variation. Snowshoe hares, for example, are brown in the spring and summer months, but during the winter, their coat changes to white. There also needs to be an evolutionary advantage to the trait; any hares that do not change color...
'Natural selection' is, it seems, an ambiguous term. It is sometimes held to denote a consequence of variation, heredity, and environment, while at other times as denoting a force that creates adaptations. I argue that the latter, the force interpretation, is a redundant notion of natural ...
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: ...
Natural selection is a process first described by Charles Darwin and Alfred Wallace in the 1800s. They determined that individuals in a habitat with the best adaptations can survive the best, passing on those adaptations. This process has resulted in...
What can natural selection lead to? A. Only the evolution of new species. B. Only changes in the characteristics of a population. C. Both the evolution of new species and changes in the characteristics of a population. D. Nothing.
What is the basis of natural selection? What is variation in natural selection? What are the types of natural selection? What happens in the process of natural selection? Define natural selection and give an example in biology. What is the difference between natural selection and evolution?
2What does the example of India illustrate?[A]Wealthy people tend to have fewer children than poor people。[B]Natural selection hardly works among the rich and the poor。[C]The middle class population is 80% smaller than that of thetribes。[D]India is one of the countries with a very ...
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...
In modern biology, natural selection is a process whereby species which have traits that enable them to adapt in an environment survive and reproduce, and then pass on their genes to the next generation. Natural selection means that species that can adapt to a specific environment will grow in ...
英语翻译.What we call "the survival of the fittest" he named "natural selection". 答案 我们所说的“适者生存”,他将其命名为“自然选择(法则)”. 结果二 题目 英语翻译 .What we call "the survival of the fittest" he named "natural selection". 答案 我们所说的“适者生存”,他将其命名为“...