X-Ray Absorption SpectroscopySpectrometry, X-Ray EmissionX-RaysSpectrum AnalysisFourier AnalysisMetalloproteinsZincElectron Probe MicroanalysisIronAbsorptionIntestinal AbsorptionCopperSpectroscopy, MossbauerManganeseSulfurElectron Spin Resonance SpectroscopySpectrum Analysis, RamanBinding SitesAbsorptiometry, PhotonFerric CompoundsModels, MolecularOxygenMolecular StructureOrganometallic CompoundsMolecular ConformationWaterOxidation-ReductionMicroscopy, ElectronProtein ConformationLigandsMagnetic Resonance SpectroscopyCrystallography, X-RayProtein BindingGamma RaysCell BiologyOrganoidsPhosphotungstic AcidSkin AbsorptionResearchBiological AvailabilityHistocytochemistrySporesSpectrophotometryElasmobranchiiSkates (Fish)Histological TechniquesOsmiumCytoplasmCytoplasmic GranulesSpectrophotometry, AtomicPsychoacousticsFreeze EtchingChromatophoresJejunumInclusion BodiesSex ChromatinStaining and LabelingSpeech IntelligibilityEukaryotaTime FactorsMicroscopyNoiseAudiometry, SpeechSpectrophotometry, UltravioletAcoustic StimulationMicroscopy, Electron, ScanningAuditory ThresholdMembranesPitch PerceptionSound SpectrographyIntestine, SmallMicroscopy, Phase-ContrastSpeech AcousticsCell WallGolgi ApparatusCell Physiological PhenomenaEpitheliumCell NucleusEndoplasmic ReticulumSpeech PerceptionArachnidaCell MembraneNissl BodiesZinc RadioisotopesKineticsAnimal FinsAdministration, OralMitochondriaPhytic AcidMolecular Sequence DataFishesChromosome Mapping