(1)Which of the following has the closest meaning to the underlined word “thrives” in the first paragraph?(2)What can we infer about the peppered moth's natural selection process?(3)What's the difference between light-colored and dark-colored moths?(4)Which would most likely happen if soo...
of peppered moths were able to better blend(融合)into their surroundings. During that time period, great changes were happening in Great Britain. The Industrial Revolution was part of this change, and with it came air pollution. Natural selection often takes hundred or even thousands of years ...
There are numerous constraints, or limits, on the power of natural selection to bring about change. First, the genetic variation needed to perfect a characteristic may not be forthcoming. Second, during evolution, the adoption of one among several possible solutions to a new environmental opportunit...
英语翻译24.The role of natural selection in evolution was formulated only a little more than a hundred years ago,and the selective role of the environment in shaping and maintaining the behavior of the individual is only beginning to be recognize
Island faunas can be characterized by gigantism in small animals and dwarfism in large animals, but the extent to which this so-called ‘island rule’ provides a general explanation for evolutionary trajectories on islands remains contentious. Here we us
1英语翻译24.The role of natural selection in evolution was formulated only a little more than a hundred years ago,and the selective role of the environment in shaping and maintaining the behavior of the individual is only beginning to be recognized and studied.【译文】 自然选择在进化中的作用仅...
【题目】Natural selection is the process by which one type of animal within a species thrives berause of certain characteristies that make it more likely to live than others in its group. The history of the pep-pered moth (蛾) is an exanple of the natural seleetion process.In 19th ...
There are numerous constraints, or limits, on the power of natural selection to bring about change. First, the genetic variation needed to perfect a characteristic may not be forthcoming. Second, during evolution, the adoption of one among several possible solutions to a new environmental opportunit...
第4章 自然选择即适者生存 Natural Selection;or the Survival of the Fittest 自然选择——自然选择与人工选择的比较——自然选择对次要性状的作用——自然选择对不同年龄和不同性别生物的作用——性选择——同种个体间杂交的普遍性——杂交、隔离、个体数量等对自然选择结果的有利和不利因素——自然选择的缓慢作...
The Industrial Revolution was part of this change, and with it came air pollution. Natural selection often takes hundred or even thousands of years to occur. For the peppered moth, this process occurred comparatively quickly. At the beginning of the Industrial Age, most peppered moths in England...