IB Bio Final - Chapter 1 Intro ● Independent Variable○...

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Chapter 1: Intro. Independent Variable- Set by the experimenter, what is going to be changed, x-axis Dependent Variable- Measured during investigation, y-axis Scientific Method- Mean- Average of all data Median- Middle value when data is in order Mode- Most common value Characteristics of Life- Organization: high degree of order within an organism’s internal and external parts and its interactions with the living world Cells: Unicellular and multicellular Response to stimuli: physical or chemical change in the internal or external environment Homeostasis: maintain stable internal conditions Metabolism: Sum of all the chemical reactions that take in and transform energy and materials from the environment Growth and Development: Non-living things: build up materials Living things: cell division and cell enlargement Reproduction: organisms produce new organisms like themselves Sexual: hereditary info. Combines from two organisms of the same
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