The Darwinian revolution challenged traditional views of a y

The Darwinian revolution challenged traditional views of a young Earth inhabited by unchanging species. What were the prevailing thoughts about the Earth and the organisms on it prior to Darwin? What was Darwin\'s big idea? How does it differ from previous ideas explaining the diversity of life on Earth? What is the \'Scala Naturae\', who advanced this concept and why was it so widely accepted? What is \'Systema Naturae\', who advanced this concept and why so accepted? Who are these people did we talk about them? How are their ideas relevant to a conversation about evolution? Malthus, Linneaus, Hutton, Lyell, cuvier, Lamarck, Aristotle, Darwin, Mendel, Wallace What did Lamarck propose as an explanation for how organisms change over time? Explain how Lamarck\'s ideas are not supported by evidence? Descent with modification by means of natural selection explains the adaptations of organisms and the unity and diversity of life What did Darwin do that most influenced his worldview (what is a worldview)? What were the critical observations Darwin made on his voyage of discovery? What two main ideas did Darwin develop in the \"Origin of Species\"? What is natural selection? (Look at the lecture powerpoints to answer the question) What are three main points and important considerations regarding natural selection? What is an adaptation? What are the two observations and two inferences that explain how natural selection leads to adaptive evolution? What role did artificial selection play in the development of Darwin\'s logic for natural selection? What does the theory of evolution suggest will happen when environments favoring one adaptation change?

Solution

Ques-1: What were the prevailing thoughts about the young Earth and the organisms on it prior to Darwin

The prevailing thoughts about the young Earth and the organisms on it prior to Darwin are creatures were created by supernatural power & human are going to control these creatures and populations are unchanging on the young Earth. Theory of evolution of “Darwin” has produced specific impact on the imperialism and biblical view of origin of the species finally affected contemporary philosophical views of religion & creation. These views have changed socio-economical perspectives in the society about the culture finally changed the “religious views of humans that “human race has evolved from God’s creation & God’s image”.

Ques-2: What was Darwin\'s big idea?

Answer:

Darwin theory of evolution is completely based on genetic variations and natural selection operating on the species to acquire adaptations followed by unfit species are going to extinct. However, here the extinction is not based on designer as it is due to nature. Nature selects species, which are fit into it followed by elimination that is unfit in nature. It is different from previous ideas of Earth species diversity, in which creation was completely relies upon myths and God, the “religious views of humans that “human race has evolved from God’s creation & God’s image”. Darwin uses Gradualsim and he proposed that the gradual changes associated with variations of a species through evolution to get adapted to the present ecosystem with no much transitional forms. Human evolution based on the gradualism and their adaptations are extremely complex. Initially in the gradualism, natural selection operates to obtain specific traits according to biome, ecosystem because of large-scale events followed by formation of rivers, water availability and habitat formation. Humans did not evolve from primates until just 7 million years ago; while life appeared on earth 3.5 billion years ago. Humans are well adapted for the environment and developed their adaptation features as per interspecific and intraspecific genetic variations