BB lecture 8-29-08 Life, sci.method

BB lecture 8-29-08 Life, sci.method - Chapter 1 (pp.3-20)...

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Chapter 1 (pp.3-20) Overview of some basic concepts Learning objectives • Know what properties something must have to be considered “alive”. • Explain the relationship between “hierarchy” and “emergent properties”. • Describe the concept of “reductionism” and its usefulness in bio-research. Know a mnemonic for remembering the current taxonomic classifications. • Describe the basis of Darwin’s idea of natural selection. What was he thinking? • Understand the role of “observation” and the “formal” steps involved in the ‘scientific method’
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What are basic attributes of something that’s “ ALIVE ”? Cell structure Metabolism Homeostasis Reproduces DNA (information transfer)
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Figure 1.4 1 1. The biosphere From the biosphere to organisms. . Cell 8 Cells 6 Organs and organ systems 7 Tissues 10 Molecules 9 Organelles 50 µm 10 µm 1 µm Atoms pp. 4-5 ..and from cells to molecules 2. ecosystems 3 .community 4 .population 5 .organism Simply – There are many levels of biological organization, from atoms to the biosphere. [see
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BB lecture 8-29-08 Life, sci.method - Chapter 1 (pp.3-20)...

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