Ch 1-5 notes - Fundamentals of Life o Cellular Organization...

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Fundamentals of Life o Cellular Organization – ordered, unicellular; multicellular o Sensitivity – stimuli o Growth – Metabolism o Development (gene directed) o Reproduction – asexual; sexual o Regulation o Energy Utilization o Evolutionary Adaptation – interaction o Homeostasis o Heredity – DNA How is Life Organized? o Atom > molecule > cell > tissue > organ > organ system > multicellular organism > organ system > population > community > ecosystem > biosphere. o Tissue – organized group of cells interacting in a special function or action. o Organ – a structural unit of two or more tissues interacting in a special function or action. o Organ system – group of organs interacting in a very specialized function or action o Population – a group of organisms of the same species that live together and interbreed and share the same resources. o Community – different populations that live together, not interbreeding but may use some of the same resources. o Ecosystem – a community and all the non-living environmental factors living and interacting together. o Biosphere – all the environments the Earth can support.
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