crest - top of a wave, trough - bottom of a wave, wavelength - from one compression to the next, fastest - light travels through a vacuum the.., visible light - part of EM we can see!, dependent - variable that is measured, independent - variable that is manipulated, refraction - Light slows and and bends, diffraction - waves bend AROUND an object, sonar - using sound waves UNDERWATER, pitch - how high or low sound is, resonance - vibrate at natural frequency, convex mirror - curve outward and diverge light, concave lens - thinner in the middle, vacuole - storage area in cell, nucleus - control center of cell, population - ALL the SAME species, phenotype - Brown eyes, genotype - Gg GG gg,

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