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, evolution is ASudden but discontinuous process BSlow, gradual, continuous process CSlow, sudden and discontinuous process DSlow and discontinuous processSubmit The driving force of an ecosystem is ABiomass BProducer CCarbohydrate in producers DSolar energySubmit Driving force of ...
According to Darwin's evolution theory, the best selection, survival of the fittest. The moth's color is a protective color, is the result of natural selection. In 1849, the environment has not been a big pollution, the majority of white moths. ...
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...
According to Darwin's theory of evolution(进化论), land animals evolved from fish. But which fish? Chinese paleontologist(古生物学家)Zhang Miman believes she has found the answer after studying fish fossils(化石)for over 60 years. This has won her a United Nations award(奖)given only to ...
According to Darwin's theory of1.evolution, land animals evolved 1 fish. But which fish? Chinesepaleontologist(古生物学家) Zhang Miman believes she has found the answer2.after 2 (study) fish fossils for over 60 years. This has won her a UnitedNations award given only to female scientists....
According to Darwin, evolution resulted from the ___ of those accidental variations that proved to have survival value. a. Natural selection b. Sharing c. Inhibition d. Extinction. When unconscious defenses block access to certain material during free assoc...
Darwin had a phrase to describe those ignorant of evolution: “ they look at an organic being as a savage looks at a ship, as at something wholly beyond his comprehension”. No doubt we will remember a 20th century way of life beyond comprehension for its ugliness. But however amazed our...
EvolutionDinosaursThe interpretation of exaggerated structures in the vertebrate fossil record has been hampered by disagreement over the definition of sexual selection and how it relates to sexual dimorphism. Previous assertions that Darwin placed a requirement of sexual dimorphism on sexual selection are...
In this country, since its inception, there have been only two major competing theories, or hypotheses, that have squared off against one another, regarding “The Origins Of All Life”. CREATIONISM and EVOLUTION. Evolution is the scientific argument. (Darwin), and Creationism, which is the foun...