Fossil Fuels: Oil Introduction History We are a country that runs on oil. From the gasoline in our cars to the plastic in our computers to the detergents that we put in our dishwashers‚ we rely on oil for our modern way of life. It cannot be understated just how strong of a role it plays in our economy and politics. It is used in tractors that plow and harvest food. It is used to power manufacturing plants and as feedstock in commercial goods. It powers all the trains and trucks that bring goods
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Key Terms * species-A species is a group of similar organisms that can mate with each other and produce fertile offspring. * fossil-A fossil is the preserved remains or traces of an organism that lived in the past. * adaptation –A trait that helps an organism survive and reproduce. * evolution-The gradual change in a species over time is called evolution. * scientific theory -A scientific theory is a well-tested concept that explains a wide range of observations. * natural
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and the evolution of our understanding of these animals’ relationships to the organisms of today. Summary “Wonderful Life” expresses the beauty of the organisms themselves. The Burgess Shale‚ discovered by Charles Walcott contains fossils of creatures from ancient oceans. Gould believes that The Burgess
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When most people hear the term fossil dating‚ two things come to mind‚ one being‚ “Is that what you’re grandparents do?” (Valls‚ biology class) and two‚ “what is that?”. By using either relative or radioactive dating methods‚ most geologists have the ability to tell how old a single fossil is. As always though‚ we are left with the question of which is better? Delve deeper to understand the comparisons and contrasts of Relative and Radiometric dating‚ as well as further information on both topics
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Darwin’s theory of natural selection is not supported by the geological or fossil record‚ since there have been little to no remains of intermediate species found in fossils. Darwin explains this by using the imperfection of the geological record‚ as changes in land over time means that species will often not be preserved in a way that can be studied by scientists. He also references Charles Lyell’s Principles of Geology‚ which states that the earth’s surface is constantly changing‚ as evidenced
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archives of fossils and strata in order to determine how old a newly found fossil was. However‚ it wasn’t until the mid 20th century that scientists could abandon this pathetic‚ inaccurate process and move into a more acceptable precise and detailed procedure. The old way was done by comparing one fossil to other fossils found in the same layer of the earth’s ground and studying the physical characteristics of the fossil. Scientists took guesses and made assumptions of the age of a fossil and what time
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been so many things discussed throughout these couple of months‚ everything from fossils‚ to Neanderthals‚ to evolution. From the beginning of evolution‚ our very start‚ our closest relative a chimpanzee‚ and modern man. We have gone through this journey and I have witnessed what the past looked like and made me appreciate my present. There are some incredibly specific items that need to be present in order for fossils to be procured‚ and they are only found in water‚ caves‚ or volcanoes. There is
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bond creating a separation between the layers. The assemblages of fossils‚ also known as faunal assemblages‚ can be recognized through intervals of sedimentary strata. Faunal assemblages; Used to chronologically correlate fossils to time periods in history. Each strata contains faunal assemblage‚ each biozone contains geological strata. In that stratum contains the fossils unique to that area. As organisms die or go extinct their fossils are encapsulated in the sedimentary rock of that time period.
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gradually in an attempt of the species to continue to adapt to new challenges over the course of their history until they became (gradually) a new species different from their ancestors. In phyletic gradualism‚ evidence should appear throughout the fossil records with few to no gaps in between. Some very important aspects of gradualism are that new species happens from the transformation of an ancestral population into the new‚ customized descendants. The transformation happens evenly and slowly‚ and
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Persuasive Speech 2013 Name: Section: Oratory Outline Now that you have chosen your speech topic and started your research‚ you are ready to begin creating an outline for your speech. Directions: Read each step carefully and begin to fill out information you would like to include in your speech Each step is described and examples are provided. I. ATTENTION STEP (Introduction) A. Attention Getter – Grab the audience’s attention with the very first sentence You can do this
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