BSC 101 Final Exam Review - 1 2 3...

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BSC 101 Final Exam Review  Unit 1: Evolution & Genetics (Ch. 1-3, 18)  1. How is science different from other ways of understanding the world?  Science deals in demonstrable fact People create hypotheses, theories and test them 2. What are predictions  expected observations hypotheses  an educated plausible explanation for how something works  1. Testable 2 falsifiable  scientific theories  the most certain knowledge we have in science  because it is a broad explanation based on a lot of  evidence and this is as certain as we can ever be opinions  statements or claims that are based off of subjective  experiences that don’t have a place in science 3. What are the various pieces of evidence supporting evolutionary theory?  1. Observable characteristics(morphology): how structures relate to each other Vestigial structures: structures that are no longer used Homologous Structures: structures that are comparable to each other Analogous Structures: structures that have the same function but are not closely related 2. Fossil Evidence 3. Comparative Embryology: vastly different organisms and looking for similarities these similarities point to a common ancestor 4. What is the role of random mutations in evolution?  Mutations: neutral, deleterious (die right away) adaptive (help evolve and bring about evolutionary change Ultimate cause of variation: mutation 5. What are the common misconceptions about evolution and natural selection?  1. Adaptation doesn’t involve trying 2.
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