LightAbsorptionIntestinal AbsorptionInfrared RaysPhotosynthesisSpectrophotometrySpectrum AnalysisPhotochemistryRetinaldehydePhotonsChlorophyllRhodopsinCarotenoidsScattering, RadiationPlant LeavesLasersSpectrophotometry, UltravioletLight-Harvesting Protein ComplexesChromatography, High Pressure LiquidKineticsModels, MolecularSkin AbsorptionBiological AvailabilityPhotic StimulationOrientationSpectrophotometry, AtomicAcoustic StimulationX-Ray Absorption SpectroscopyJejunumVisual CortexModels, NeurologicalNeuronsStrigiformesIronTime FactorsInferior ColliculiAction PotentialsSound LocalizationIntestine, SmallAuditory CortexAuditory PerceptionVisual PathwaysMyosin Light ChainsZincAdministration, OralZinc RadioisotopesPhytic AcidContrast SensitivityDarknessWaterIron RadioisotopesMotion PerceptionCatsZinc IsotopesModels, BiologicalIntestinesHearingMacaca mulattaDuodenumSpace PerceptionCochleaRetinal PigmentsColorIleumHydrogen-Ion ConcentrationAuditory ThresholdFecesReaction TimeCaco-2 CellsAdaptation, PhysiologicalMalabsorption SyndromesSitosterolsRod OpsinsCalciumIntestinal MucosaBiological TransportNeural InhibitionMacaca fascicularisLymphMolecular Sequence DataVisual FieldsLight Signal TransductionVision, OcularVestibulocochlear NerveDietPitch PerceptionBasilar MembraneGeniculate BodiesRats, Sprague-DawleyChiropteraVisual PerceptionVision DisparityIron, DietaryComputer SimulationPerceptual MaskingSpectrometry, FluorescenceFerrous CompoundsUltraviolet RaysEnterocytesElectrophysiology