Definition
In biology, tissue is an assembly of similar cells and their extracellular matrix from the same embryonic origin that together carry out a specific function. Tissues occupy a biological organizational level between cells and a complete organ. Accordingly, organs are formed by the functional grouping together of multiple tissues.
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AbiogenesisAdaptationAerenchymaAerobiologyAgricultural scienceAgronomyAgrostologyAirwayAnatomyAnimal locomotionAnimalsAnthropologyArchaeaAstrobiologyBacteriaBacteriologyBasal laminaBast fiberBast fibreBiochemistryBiocoenosisBiogeographyBiogeologyBioinformaticsBiological engineeringBiological organisationBiological systemBiologistBiologyBiomeBiomechanicsBiomedical sciencesBiomoleculeBiophysicsBiosemioticsBiosphereBiostatisticsBiotechnologyBladderBloodBlood vesselBlood vesselsBotanyBrainBulliform cellCalloseCarbohydrateCardiac muscleCell (biology)Cell biologyCell nucleusCell theoryCell wallCellular differentiationCellular microbiologyCelluloseCentral nervous systemChemical biologyChlorenchymaChlorophyllChronobiologyCognitive biologyCollenchymaCompanion cellComparative biologyComputational biologyConnective tissueConservation biologyCork cambiumCortex (botany)Cranial nervesCryobiologyCutinCytogeneticsCytoplasmDendrologyDevelopmental biologyDicotyledonDigestionDigestive tractDiploblastDiseaseDomain (biology)EarthwormEcological geneticsEcologyEcosystemEctodermElectron microscopyEmbryoEmbryologyEndodermEndodermisEndotheliumEpidemiologyEpidermis (botany)EpigeneticsEpithelial tissueEpitheliumEukaryoteEvolutionEvolutionary biologyExcretionExodermisExtracellular matrixFlaxFreshwater biologyFungiGenerative biologyGenerative tissueGeneticsGenomicsGeobiologyGerontologyGlandGlossary of biologyGround meristemGround tissueGuard cellH&E stainHealth technologyHeartHerpetologyHistologyHistopathologyHistory of biologyHomeostasisHuman anatomyHuman biologyHuman evolutionHydroxypropyl celluloseHypodermisIchthyologyIdioblastImmunofluorescenceImmunologyIndex of biology articlesIntestinesKingdom (biology)Laser capture microdissectionLeafLegumeLifeLigninLipidologyList of biologistsList of biology awardsList of biology journalsList of research methods in biologyList of unsolved problems in biologyLumen (anatomy)LungMacromolecular assemblyMacromoleculeMammalogyMarine biologyMathematical and theoretical biologyMedical diagnosisMeristemMeristematic tissueMesodermMesophyllMetabolismMicrobiologyMicroscopeMicrotomeMineralized tissuesMolecular biologyMonocotsMorphological derivationMotor neuronMuscleMuscle cellMuscle tissueMycologyMyofilamentNeontologyNerveNervous tissueNeuroscienceNutritional scienceOesophagusOrgan (anatomy)Organ (biology)OrganelleOrganismOrnithologyOsteologyOutline of biologyPaleontologyParasitologyParenchymaPathologyPectinPeridermPeripheral nervous systemPharmacologyPharming (genetics)PhellemPhellodermPhloemPhotobiologyPhotosynthesisPhycologyPhylogenetic treePhylogeneticsPhysiologyPithPlane (geometry)Plant anatomyPlant cuticlePlant physiologyPlant stemPlant stem cellPlantsPolygonPolymerPomologyPopulation (biology)PrimatologyProcambiumPrognosisProteomicsProtistologyProtistsProtodermProtoplasmQuantum biologyRectangularRelational biologyReproductionReproductive biologyReproductive tractRespiratory airwaysRopeSclereidSclerenchymaSea anemoneSea cucumberSecretionSieve tubeSkeletal muscleSkinSmooth muscleSociobiologySpatial biologySpinal cordSpinal nerveSpongesStainingStele (biology)Stimulus (physiology)StomachStomataStriated muscle tissueStructural biologyStructureSynthetic biologySystematicsSystems biologyTaxonomy (biology)TeratologyTight junctionsTilia americanaTimeline of biology and organic chemistryTissue (disambiguation)Tissue microarrayTissue stressToxicologyTracheidTranspirationTriploblastUterusVacuoleVascular cambiumVascular tissueVessel elementVessel memberVirologyVirophysicsWelfare biologyXavier BichatXenobiologyXerophytesXylemZoology
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