BIO%20101%20Lec%20-%20Chapter%201_2

BIO%20101%20Lec%20-%20Chapter%201_2 - Chapter 1 SDM, 1/...

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Unformatted text preview: Chapter 1 SDM, 1/ 2008 I n the survival of favored individuals and races, during the constantly-recurring struggle for existence, we see a powerful and ever-acting form of selection. Charles Darwin Labs start the week of January 28th! Check the day and time that your first lab meets Buy the lab manual before your first meeting No used copies allowed in lab Students that do not attend the first lab will receive a grade of zero There are no make-up labs, and the first lab grade can not be dropped Wear appropriate foot wear Defining science Share a similar approach Numerous disciplines, both natural and social Science is organized knowledge. Herbert Spencer I n essence, science is a perpetual search for an intelligent and integrated comprehension of the world we live in. Cornelius Van Neil and biology? Study of life Also many disciplines Biologists develop and refine ideas about the living world Characteristics of life Smallest unit of life is the cell Organisms are made up of a certain subset of molecules Carbohydrates Proteins Lipids Nucleic acids Characteristics of life (cont.) Nothing survives without energy Energy = capacity to do work Metabolism = reactions by which cells acquire and use energy Characteristics of life (cont.) Organisms sense changes in their environment and make responses to them Organisms grow, develop, and reproduce using molecular instructions (i.e., DNA and RNA) Life shows adaptation Characteristics of life: a summary...
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BIO%20101%20Lec%20-%20Chapter%201_2 - Chapter 1 SDM, 1/...

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