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Biology 189 Exam 1 Chapter 1-4 with correct answers
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Biology 189 Exam 1 Chapter 1-4 with correct answers
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Biology 189 Exam 1 Chapter 1-4 withcorrect answers
Statistical Significance - correct answer -Measure or confidence that the results obtained.
Scientific Theory - correct answer -A hypothesis that continues to hold up after many years of testing.
Epidemiology - correct answer -The study of patterns of disease in populations.
Anecdotal evidence - correct answer -informal observation that hasn't been systematically tested;
interesting but often unreliable.
Randomized Clinical Trial - correct answer -controlled medical experiment (placebo)
All living things have five things in common: - correct answer -1. Grow
2. Metabolism
3. homeostasis
4.Reproduction
5. sense/response stimuli
Matter (building block) - correct answer -Anything that takes up space and has mass.
Atoms (building block) - correct answer -smallest unit of and element.
Covalent bond - correct answer -When electrons are shared
Ionic - correct answer ->1.7
Polar covalent - correct answer -0.5-1.7
, Nonpolar covalent - correct answer -0.0-0.4
Ionic bond - correct answer -occurs when more electronegative atom steals the other atom's electron
no sharing.
Ion - correct answer -charged particle (unequal electrons and protons)
non polar molecules - correct answer -do not dissolve in water (ex: methane)
Water - correct answer -polar molecule; forms hydrogen bonds with water and molecules.
Solute - correct answer -anything being DISSOLVED
Solvent - correct answer -DOES the dissolving
Hydrophilic - correct answer -interact with water
Hydrophobic - correct answer -does not interact with water
Cohesion - correct answer -water molecules cling TOGETHER.
Adhesion - correct answer -water molecules cling to SURFACE
High absorbance - correct answer -lager liquid range
Organic Molecules - correct answer -have carbon-based backbones and at least one C-H bond.
Inorganic Molecules - correct answer -lack carbon-based backbones and C-H bonds.
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