According to Darwin's theory of evolution, which factor plays a crucial role in the process of natural selection? A. Random mutation B. Inheritance of acquired characteristics C. Environmental adaptation D. Artificial selection 相关知识点:
According to Darwin’s theory of evolution, members of a species are forced to struggle for survival because ○not all individuals are skilled in finding food ○individuals try to defend their young against attackers ○many more individuals are born than can survive until the age of reproduction...
DSlow and discontinuous process Submit DSolar energy Submit Dproducer Submit Driving force of ecosystem is: View Solution According to Darwin, fitness refers to a) Ability to survive and reproduce b) High aggressiveness c) Healthy appearance ...
Darwin's theory of evolution is the most important idea in biology. Darwin as a person and the circumstances in which he lived allowed this great idea to emerge. By the end of the 19th century most scientists accepted Darwin's idea of evolution by natural selection. However, two important ...
" I will not here enter on these several cases, but will confine myself to one special difficulty which at first appeared to me insuperable, and actually fatal to the whole theory. I allude to the neuters or sterile females in insect communities " (Darwin 1859). 展开 关键词: Medicine ...
According to the passage, Darwin's theory of evolution is based on ___. A. artificial selection B. natural selection C. genetic mutation D. random chance 相关知识点: 试题来源: 解析 B。达尔文的进化论是基于自然选择,人工选择是人类干预的结果,遗传突变只是进化的一个因素但不是达尔文理论的基础,随...
According to Darwin's theory of 1. ___evolution, land animals evolved fish. But which fish? Chinese paleontologist(古生物学家) Zhang Miman believes she has found the answer 2. ___after 2 (study) fish fossils for over 60 years. This has won her a United Nations award given only to ...
In short, according to Darwin, species are continuously transformed “by the preservation of such variations as arise and are beneficial to the being under its conditions of life”, that is, by the survival of the fittest, which is to be considered “not the exclusive”, but the “most ...
ACCORDING to Darwin the long neck of the giraffe is the result of natural selection acting through the animal's tree-feeding habit. He wrote: ``the individuals which were the highest browsers and were able during dearths to reach even an inch or two above the others will often have been ...
【题目】When Charles Darwin explained evolution, the process he saw was natural selection(选择). It turns out human selection can also cause plants to evolve.Take the case of the snow lotus, a rure(稀少的) plant that grows only high up in the Himalayas. Researchers have discovered that one...