Evolution is a broad term that is applied to different processes of change and development within an organism. It is critical to understand the different types of evolution that occur, and the significance, implications and evidence for each, in order to clarify evolutionary theory. In this discussion, the three types of evolution are defined and explained with examples, as the question is examined "Can new types of organisms arise by random mutations?

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How did life on earth start? Even the simplest cells are extremely complex. With thousands of molecules involved that have to be in just the right conformation, concentration, and sequence, just getting all the necessary parts of a cell together is an impossible feat. But even if you had all of this, the cell wouldn't be alive. What would it take for the cell to start living? What would it take to stay alive? How probable is it for this to happen by chance?

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How did life on earth start? When scientists talk about life beginning, they are referring to "simple" life forms or single-celled organisms. But how "simple" are these life forms? We know today that these cells are made of thousands of different parts. What would it take for these molecules to form naturally from elemental atoms? How likely is it for this to occur?

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How did life on earth start? Evolutionists assert that life began on earth about 3.7-4.5 billion years ago. This is based on radiometric dating of the fossil record and the rock beds they are found in. While this time frame is questionable, a bigger question is how did life arise at that time? Could it have emerged spontaneously from non-living material? Could it have come to earth from outer space?

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What is the evidence for evolution? Darwin's belief about human evolution was influenced by Thomas H. Huxley, who proposed that humans descended from apes. This was evident to Darwin because of the anatomical similarities shared between humans and apes. Darwin also was persuaded that humans descended from fish, based on the notion that the embryonic state of each species indicates the structure of their less developed ancient progenitors. At that time, it was assumed that the embryos of many different species were fish-like. Subsequent scientific research has given evidence that these ideas are highly inconclusive at best, and in the case of the embryos, false.

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What is the evidence for evolution? Biologists have worked hard through the one and a half centuries since Darwin published his theory of evolution to gather supporting evidence for it. Much of the initial evidence was rooted in the fossil record, which suggested species evolution from lower to more advanced organisms in context of a long age time reference. Evolutionary links between species were assumed based on skeletal and physical similarities, and stemmed back from an unknown universal common ancestor. But the understanding of genetics has challenged these initial views due to the surprising and unlikely gene matches that have been discovered. This leaves the accumulated evidence for Darwin's tree of life model in a conflicted position.

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What is the evidence for evolution? Darwin was a keen and thoughtful observer of the things around him. Influenced by the mechanistic mindset of his time, Darwin sought to understand and explain the diversity of species and their traits through natural processes. This investigation led him to develop his concept of natural selection, which combined with a long-age time reference, became his theory of evolution.

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Is Evolution a fact? Has evolution ever been observed in action? Does the fossil record reflect the evolutionary process? Is there any case where species mutations naturally gain genetic information? The short answer is No. How do evolutionary scientists respond to this? Where does this leave evolution?

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