(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?
【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 ...
Natural selection is the process in which organisms with certain traits survive and reproduce while organisms that are less able to adapt to their environment die off. As Darwin pointed out, natural selection does not necessarily produce evolutionary progress, much less perfection. The limits to the...
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
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
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 ...
thrives because of certain characteristics that make it more likely to live than others in its group The history of the peppered moth () is an example of the natural selection process.In 19th century England certan types of peppered moths were able to better blend () into their surroundings....
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...
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...
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...