Living organismsClassify organisms and compare living systems.Close contentBacteriaClassification of Living OrganismsFungiBiological DiversityLiving Organisms in EcosystemsDisease and ecosystemsConnect viruses, ecosystems, and climate effects.Close contentHow Viruses ReproduceWays to Prevent Virus SpreadEffects of VirusesWhat is a VirusCauses of Climate ChangeGlobal Cooperation to Address Climate ChangeImpact of Climate ChangeMitigation and Adaptation Efforts for Climate ChangeSymptoms of Climate Change
