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Chapter 11 Cell Communication

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Lecture Outline for Campbell/Reece Biology, 7th Edition, ? Pearson Education, Inc. 11-1 Chapter 11 Cell Communication Lecture Outline Overview: The Cellular Internet ? Cell-to-cell communication is absolutely essential for multicellular organisms. ? Cells must communicate to coordinate their activities. ? Communication between cells is also important for many unicellular organisms. ? Biologists have discovered universal mechanisms of cellular regulation involving the same small set of cell-signaling mechanisms. ? The ubiquity of these mechanisms provides additional evidence for the evolutionary relatedness of all life. ? Cells most often communicate by chemical signals, although signals may take other forms.

Introduction to American Government (Overview)

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Overview As an academic field, American government encompasses not only the study of the systems, institutions, and policies of the United States government but also the political ideals and beliefs of the American people. The field falls within the broader discipline of political science, the study of government and power. Students and scholars of American government try to answer questions concerning the political culture, the distribution of power, decision-making processes, government policies, and laws, among other issues and behaviors. American government and political science often overlap with other social sciences, including economics, psychology, sociology, and anthropology.
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