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4 Cards in this Set
- Front
- Back
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deep time? history and impact? 4 lines of evidence?
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billions of years old. Hutton. no longer 4000. continental drift, uniformitaranism, law of superposition, radioisotopic dating.
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uniformitaranism? three laws? why unconformities important?
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geo events by natural process still happen, no change to laws of nature over time. superposition: undisturbed layers oldest bottom. original horizontally: form horizontal lines due to gravity. faunal succession: fossils occur in geo order. unconformities can tell about the area at certain times, erosion or earthquakes. even continental drift
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evolution theory? Darwin? certain? less certain? natural selection. adaptation. progress.
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all species evolved from a single origin of life. Darwin added natural selection. variations occurs inherited and over time is adapted into the species. sexual selection. inter species variation. less certain? species. can't see extinct reproduce. progress, all driving towards some goal. but not so. species best adapted for environment currently.
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ecosystem producers? primary consumers? secondary consumers? decomposers? flow of energy?
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pteridophytes, ferns. gymnosperm, conifers. ceropoda and sorapods. theropods and crocodilia. insects, fungi and bacteria. flow of energy. sun, plants, primary, secondary, decomposers, losing energy as you go.
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