美国堪萨斯论文代写:自然选择理论
Keywords:美国堪萨斯论文代写:自然选择理论
达尔文的自然选择理论被普遍认为是生物起源和进化过程中的一个重要里程碑。在达尔文之前，许多像他一样的科学家声称物种是由其他物种或先祖进化而来的。大多数时候，没有任何科学证据来证明这个概念，因此许多理论被忽视了。在达尔文的理论之前，特别是在中世纪，进化论的概念并没有得到足够的重视，因为生物的起源被认为是上帝的创造。这一观点声称，生物体以一种没有变化的方式出现，因此与进化的概念背道而驰。许多像康德这样的科学家建立了一个接近现代观点的血统概念;他的分析来自于对猩猩的研究，他声称猩猩有能力发展出与人类相似的结构。尽管他的理论目前与现代观点联系在一起;这个理论从来没有给出任何可能的机制来驱动生物体的变化。卡洛勒斯·林奈是另一位被认为是现代分类学之父的科学家，他的工作是对植物和动物进行等级分类。在他的理论中，他认为植物杂交是一种可以产生新的植物物种的过程。然而，他仍然支持与进化论相悖的创造论。伊拉斯谟·达尔文(查尔斯·达尔文的祖父)也是一位非常杰出的博物学家，他认为生命可能起源于一个共同的祖先。他的理论认为，废弃生物体的部分可能在其自身的机制中使这些部分生长或收缩。
美国堪萨斯论文代写:自然选择理论
Darwin’s theory of Natural Selection is generally regarded as a significant landmark in the origin of organisms and evolution process. Before Darwin, many scientists like him alleged that species evolved from other species or antecedent. Mostly during those times there was no any scientific evidence to prove that concept hence many theories went unnoticed. Prior to Darwin’s theory especially in medieval times, the concept of evolution was not much appreciated for the reason that origin of organisms was regarded as Gods creation. This idea claimed that organisms came into existence in a way that they were unchanged, hence going against the notion of evolution.Many scientists like Immanuel Kant established a notion of descent that was close to modern view; were he suspected that organisms may have originated from a common ancestor .His analysis emerged from studies of Orang Utang which he claimed had capacity to develop structures similar to those of man. Despite the fact that his theory is currently linked with modern views; the theory never gave any plausible mechanism that would drive changes in organisms.Carolus Linnaeus is another scientist who is viewed as the father of contemporary taxonomy in relation to his work of hierarchical classification in both plants and animals. In his theory, he viewed hybridization in plants as a process that could produce new plant species. However, he still supported the theory of creation that goes against the theory of evolution. Erasmus Darwin (Charles Darwin’s grandfather) was also a very illustrious naturalist who believed that life could have originated from a common ancestor. His theory states that the disuse of organism’s parts could in their own mechanism make the parts grow or shrink.
