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1. Order Order • Analyzing a biological structure gives us clues about what it does and how it works 2. Reproduction • DNA: • Genes: • Genome: 3. Growth & Development • Organisms increase in size and complexity. • Growth – • Development • Life - 4. Energy Utilization 5. Response To Environment • The speed of the response may be “fast” or “slow”. 6. Homeostasis • “homeo” = same “stasis” = state • Negative Feedback: • Positive feedback: 7. Evolutionary Adaptation • Natural Selection: Science is based on: 1) 2) 3) Observations: • Are the “keystone” to Science. • If it can’t be “observed”, it can’t be studied by the Scientific Method. • Can be made through your senses or through the use of tools. • Inquiry – • Discovery Science – • Hypothesis – • Theory – Scientific Method: • Outlines a series of steps for answering questions. • Obtains “evidence” through the use of experiments. Scientific Method Steps 1 2 3 4 Scientific Method Steps 5 6 7 Controlled Experiment • Control Group – • Experimental Group – • Qualitative Data – • Quantitative Data – Reasoning • Induction • Deduction Summary • We will see the “themes” at various times throughout the course. • AP Biology students must be able to design an experiment to test a hypothesis. • Why? This is a national exam test item. Levels of Biological Organization Systems Biology 8 Taxonomic Levels • Prokaryotic Cells – • Eukaryotic Cells – The Three Domains of Life • Domain Microscopic, Unicellular, Prokaryotic • Domain Microscopic, Unicellular, Prokaryotic • Domain Eukaryotic cells; Protista, Fungi, Plants, Animals