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BIOL 3040 (7)
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Chapter 12

Chapter 12 Objectives (98% on the test)

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Biological Sciences
BIOL 3040
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Chapter Learning ObjectivesChapter 12 Major Transitions121 Overview of Major TransitionsList the major transitions in the evolution of life on EarthoPage 408Describe the three processes that occur during these transitionsoIndividuals give up the ability to reproduce independently and they join together to form a larger grouping that shares reproductionoOnce individuals aggregate into higherlevel groupings they can take advantages of economies of scale and efficiencies of specializationoAggregation and specialization facilitate changes in information technologies Organisms develop new and increasingly efficient ways to acquire process transmit and store information List the steps of a major transition and give an example of how it would be difficult to reverseoIndividual replicators band together to form a new highlevel individual which then can replicate more effectively The new individual can reproduce faster and more efficiently due to economy of scale division of labor and improved formation processingoThis process is difficult to reverse due to genetic imprinting process in which alleles are differentially expressed according to whether they are inherited from the mother or from the father122 Major Transit
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