MIDTERM 1 SG

MIDTERM 1 SG - Order Decreases in natural systems (entropy)...

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Order Decreases in natural systems (entropy)       Requires energy to be produced/maintained       Energy w/in system can be drawn from one            part to another to increase orderliness           (decrease entropy).       Living organisms draw energy from           (could be close to general definition of life) Metabolism Chemical sequences (of stepwise changes)           that provide energy       Chemicals that are building blocks of life           make more organisms       Ex: Photosynthesis, respiration, fermentation              (all help organism obtain energy necessary  Adaptations Ex: color of frogs, ability of fungi to “eat”            cellulose, ability of micro-organisms to grow            in acid hot springs (lethal for all other           organisms)       Features that adapt to environment Responsiveness Vague/broad biological concept Homeostasis When response to a change counteracts the           change       Ex: regulation of body temperature in  Stimulus  Environmental change that an organism           responds to Receptor     response Reproduction  Allows for persistence of a population Genes Machinery responsible for offspring’s            resemblance of their parents       Chemical blueprints that specify organism (by        DNA contains the blueprints in its linear  Evolution  Based on the environment’s selection of           fitness (natural selection)       Genes change           produce better adaptations or “fitness”
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Viruses  Lack some characteristics of organisms          - Independent life Show orderliness, have adaptations,     reproduce (in a different way), have genes,    and evolve        Aren’t organisms, but PRODUCTS of organisms Interdependency Functioning of ecosystem depends on           activities of several diff kinds of organisms           (making them interdependent). Producers
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MIDTERM 1 SG - Order Decreases in natural systems (entropy)...

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