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This 7 page Class Notes was uploaded by Corina Johnson on Tuesday February 23, 2016. The Class Notes belongs to 10584 at University of Houston taught by Dr. Lawrence Williams in Spring 2016. Since its upload, it has received 94 views. For similar materials see General Biology in Biology at University of Houston.
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Date Created: 02/23/16
BIOLOGY BIO…life. What is life? CHARACTERISTICS OF LIFE? How do you know something is alive? OLOGY…the study of. How do we investigate something? What is the proper way? CHARACTERISTICS OF LIFE • Cellular • Metabolism; use energy • Homeostasis; maintain conditions within tolerance limits • Reproduction; DNA, growth • Respond to stimuli • Adapt • Short-term adaptation (physiological) • Long-term adaptation (evolutionary) HOW IS SCIENCE CONDUCTED • Discovery-driven science • Hypothesis-driven science HOW DO WE INVESTIGATE USING HYPOTHESES? Use or modify the reliable Scientific Method. STEPS: Observation Hypothesis Experiment Conclusion EXPERIMENT MUST HAVE A CONTROL AND EXPERIMENTAL (TREATMENT) GROUP. THE DIFFERENCE BETWEEN THE GROUPS SHOULD ONLY BE THE TREATMENT BEING TESTED. Must objectively determine whether the treatment is effective or not. How to test objectively?…..STATISTICAL ANALYSIS. Need data to analyze. Candidate 1 Candidate 2 Undecided 37% 44% 19% Standard error (se) = 3%. Often reported as the “error rate.” Is Candidate 2 ahead? HOW IS SCIENCE CONDUCTED PROPERLY? • Establish and test hypotheses. • Investigators must remain unbiased. • Should publish results in a reputable publication. • All work must be done ethically.
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