BIO 1510-1 - Bio – 1510 Basic Life Mechanisms Bio –...

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Unformatted text preview: Bio – 1510 Basic Life Mechanisms Bio – 1510 Basic Life Mechanisms Fall 2008 Fall 2008 Dr. Rasheeda Zafar Chapter # 1 Introduction Properties of Life, Nature of Science, Hierarchical Organization Darwin and Evolution 1 Properties of Life Properties of Life Biology is the science of life and study of living things Living organisms: are composed of cells i.e. cellular organization cellular organization are complex and ordered respond to their environment i.e. sensitivity sensitivity can grow and reproduce obtain and use energy i.e. metabolism metabolism maintain internal balance i.e. homeostasis homeostasis allow for evolutionary adaptation 2 Hierarchical Organization Cellular level Cellular level Cell Cell is the basic unit of life Atoms Molecules Organelles Cells 3 Hierarchical Organization Hierarchical Organization Organismal Level Organismal Level Tissues Organs Organ systems Organism 4 Hierarchical Organization Hierarchical Organization Population Level • Population • Species • Community • Ecosystem • Biosphere 5 Hierarchical Organization Hierarchical Organization Each level of organization builds on the level below it but often demonstrates new and distinct features and novel properties emerge. Emergent properties Emergent properties: new properties present at one level that are not seen in the previous level 6 Nature of Science Much of biology is concerned with arriving at an increasingly accurate accurate description of nature....
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This note was uploaded on 12/04/2009 for the course BIO 1510 taught by Professor Rodriguez during the Spring '08 term at Wayne State University.

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BIO 1510-1 - Bio – 1510 Basic Life Mechanisms Bio –...

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