Lect.1ch10 - Biology 100 Sandra Sanchez California Condor,...

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Biology 100 Sandra Sanchez California Condor, By Kelli Elliott Grand Canyon, 6/2005
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What characteristics are shared by living organisms? Organized from the atom to the biosphere Maintain a relatively constant internal environment ( homeostasis ) Respond to internal and external stimuli Use materials and energy from the environment Reproduce offspring Growth and development Evolutionary history through which organisms change over time
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What do we know about science? Science is a way of knowing about the natural world Science and scientists should be objective Scientific conclusions may change or be modified as our understanding and technology increase Science is studied using the scientific method
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Biology: The study of Life
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The Scientific Method
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The steps of the scientific method
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Observations: many patients had a particular bacterium near their ulcers Hypothesis: Helicobacter pylori is the cause of gastritis and ulcers. Experiment/observations:
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Lect.1ch10 - Biology 100 Sandra Sanchez California Condor,...

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