Uniformitarianism is an important concept that guides our understanding of past processes. This concept can be best described as ______. (Select all that apply) All species uniformly go extinct in response to environmental change Natural forces caused changes in the fossil record via extinctions and speciation events Soil layers and deposits contain fossils that show extinctions and speciation events Natural forces that operate today are similar to those of the past
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Uniformitarianism is the principle that the processes that operate in the present are the same as those that have operated in the past. This means that by studying current geological and biological processes, we can infer how similar processes worked in the past. Show more…
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The theory of evolution by natural selection is uniformitarian because: Select one: a. the same processes are always causing it, even though those processes can produce different adaptive outcomes in different environments. b. all members of the species will exhibit the same adaptations. c. it keeps organisms the same over long periods of time. d. it is impossible to observe during our short lifetimes. e. two of the above are correct.
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The principle of uniformitarianism states that ___.a) A cross-cutting feature is younger than the rock layers through which it cuts. b) Rock layers at the bottom are older than rock layers above them. c) Sediment spreads out in flat, horizontal layers. d) Geologic processes that we observe today occurred the same way in the past.
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The idea, or principle (proposed by James Hutton) that the fundamental processes (such as gradualistic, catastrophic natural events, and the laws of physics that are responsible for shaping and driving the natural world that we observe today) act in the same fundamental way today as in the past is known as _______________. Group of answer choices 1) uniformitarianism 2) evolution 3) natural selection 4) stratification 5) gradualism
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