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This interactive module introduces the anatomy of the immune system and walks through the timeline of a typical immune response.

This interactive module explores the biology of sex determination and development in humans, set against the backdrop of the different sex testing policies implemented throughout sports history.

This interactive module consists of a virtual Winogradsky column, which can be used to explore the diversity of microbes, microbial metabolic strategies, and geochemical gradients found in sediments.

This interactive module explores how mutations arise in germline and somatic cells. It also shows how these mutations can lead to genetic conditions, such as cystic fibrosis and cancer.

This interactive module explores the phases, checkpoints, and protein regulators of the cell cycle. The module also shows how mutations in genes that encode cell cycle regulators can lead to the development of cancer.

This interactive timeline explores the history of Gorongosa National Park in Mozambique.

This interactive map of Gorongosa National Park in Mozambique explores different features of the park’s ecosystem and conservation strategy.

This model shows Howie, BioInteractive’s mascot. He's an interactivore.

This tutorial explores the effects of West Nile virus infection on different organisms and describes how the virus has spread throughout the United States since 1999.

This tutorial describes the symbiosis between the Hawaiian bobtail squid and bioluminescent bacteria.

This tutorial describes how bacteria communicate by a process known as quorum sensing, as shown through a series of experiments involving genetically engineered bioluminescent bacteria.

This tutorial describes how neurons generate action potentials, and how scientists measure neuronal activity and record the firing of individual neurons.