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BIOL-Chapter 1 Outline - Biology 1101 Unit I Chapter I...

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Biology 1101 Unit I : Chapter I Section 1.1 The Scope of Biology →Biology= the scientific study of life, nature, the world around you →The scope of Biology is defined by the Structural Hierarchy of Life (Figure 1.2) (From largest to smallest) Biosphere Ecosystem Community Population Organism Organ System Organ Tissue Cell= a unit of living matter separated from its environment by a membrane boundary. A cell is also the lowest level of the structural hierarchy that can perform all the activities required to sustain life. This is super-important. Organelle Molecule Atom →Organisms interact with their environments at the Ecosystem level, these interactions can be complex but in the simplest terms there are 3 Types of Organisms in an ecosystem Producers Consumers Decomposers →There are 2 Main Processes that describe how organisms interact within an ecosystem Cycling of Chemical Nutrients (aka Carbon Cycling) Flow of Energy
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