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Cards In This Set
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Experimental Design:______: number of subjects used (controls for ____ and ____variation)
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Sample size; chance events; individual
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Experimental Design:Controls: ___group & ____group
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Control; treatment group
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Experimental Design:______: effect of state of mind on one's _____. -____: used on control group (sugar pill)
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Psychosomatic Effect; physiology -placebo
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Proper Experimental Design:_____prevented by _____study_____: provides statements of ___ & that results were due to the variable being ____.
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Experimenter bias; double-blind;Statistical testing; probability; tested
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Peer Review:done before ____or____. Done by using ____ &____ of results
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Funding; publication; verification; repeatability
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Levels of Organization of the Body:
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Atoms, molecules, macromolecules, organelles, cells, tissues, organs, organ systems, organisms
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Types of Bonds: (4)
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Ionic Bond; Covalent Bond; Hydrogen Bond; Van der Waals Forces
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Ionic Bond is between a ____&____. It is a ___bond b/c they ___electrons. Most stable as____. (examples: NaCl: Na=____, Cl=____)
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Anion; cation; weak; donate; crystals; cation (pos.); anion (neg)
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Covalent Bond: 2 Types: ____&____. ___bond b/c they ___e-.
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Double (b/w 1 pair of e-); Single (b/w 2 pair); strong; share
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_____covalent bond: e- spend equal amt. of time around each nucleus. It is the ___of all bonds! (ex: C-C bond)
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Nonpolar; strongest
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_____covalent bond: e- lend their neg. charge to one of the nucleuses more than the other. (ex: O-H bond in H2O b/c O is more _____ than H)
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Polar; electronegative
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Like dissolves like: water & alcohol mix b/c both are ___ (______) water and oil don't mix b/c oil is ____ (_____)
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Polar; hydrophilic; nonpolar; hydrophobic
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______bond: form due to covalent bonds where 1 nucleus attracts the shared electrons more than the other. It is very ___. Form in assoc. w/ ___molecules (ea. atom w/ partial charge acts like a magnet and bonds ___to opp. charged polar atom)
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Hydrogen; weak; polar; weakly
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Hydrogen bonds are important in ___&___ structure. ___molecule are weakly attracted to each other by hydrogen bonds. Occur b/w pos. __ & neg. __&__.
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DNA; protein; water molecules; H; O; N
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______: the attraction for electrons by a nucleus
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Electronegativity
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