【题文】 Natural selection is the process by which one type of animal within a species thrives because of certain characteristics that make it more likely to live than others in its group. The history of the peppered moth(灰蛾)is an example of the natural selection process. In 19th century...
根据第一段中“Natural selection is the process(过程)by which one type of animal survives because of certain characters that make it more likely to live than others. The history of the peppered moth(灰蛾)is an example of the natural selection process.(自然选择是一个过程,一种动物之所以能够...
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 ...
In natural selection, the organisms that are best ___ to their environments are more likely to survive. A. used B. accustomed C. fitted D. adapted 相关知识点: 试题来源: 解析 D。同第三题,be adapted to 表示适应。used to 是过去常常;be accustomed to 是习惯于;be fitted to 是适合,都...
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 ...
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...
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...
According to paragraph 3, all of the following characterize the way natural selection stabilized the Australian rabbit population EXCEPT___ ○The most toxic viruses died with their hosts. ○The surviving rabbits were increasingly immune to the virus. ○The decline of the mosquito population caused t...
63. 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 be- ginning to be recognized and studied. 【结构剖析】...
百度试题 题目Darwinproved that natural selection___the chief factor in the development of species.种,类;【生】(物)种,人种 相关知识点: 试题来源: 解析 is 反馈 收藏