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Chapter 1 Notes

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NOTES Chapter 1: Introduction 8/18/2010 The living world is a hierarchy of structure: Atoms (smallest matter) ( molecule ( sub cellular organelles ( cells ( tissues ( organs ( organ system ( complex organism ( populations K( communities ( ecosystem ( biomes ( biosphere Life arises from these emergent properties: 1. Order (at least one cell) 2. Reproduction ? Life only comes from life. (except Biogenesis) 3. Growth & development ? directed by info stored in DNA 4. Energy Utilization- organisms take in energy to do work & release byproducts 5. Response ? to the environment, organisms respond to stimuli

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