Aug 23 - Biology Ch 1: Intro to Life on Earth Aug 23...

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Biology Aug 23 Ch 1: Intro to Life on Earth Biology = study of life, science of living organisms and life processes Life has many characteristics o Complex organized structure o Responds to stimuli Change outside or inside leads to another o Homeostasis Ability to maintain the structure and regulate internal environment o Ability to acquire material and energy Often transformed o Growth o Reproduction Sexual or asexual, DNA = genetic info (blueprint) o Ability to evolve Change to fit environment Complex organized structure o Built in levels Each has ingredients or components which interact to make something greater than sum of parts (emergent properties) Sodium (metal, not edible) + chlorine (poisonous gas, not edible) = salt (edible) Biosphere (part of Earth with living organisms, living and non- living) Ecosystem (community together with non-living surroundings) Community (2+ population of different species living and
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Aug 23 - Biology Ch 1: Intro to Life on Earth Aug 23...

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