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 Do Viruses Reproduce?Ways to Prevent Virus SpreadRole of VirusesWhat is a Virus?Causes of Climate ChangeGlobal Cooperation to Address Climate ChangeImpact of Climate ChangeMitigation and Adaptation Efforts for Climate ChangeSymptoms of Climate Change
