1 triplet = 1 amino acid Image Play

A 40-year-old man Image Play

A balanced diet Presentation Play

A biological population Presentation Play

A brief history of the electron microscope Presentation Play

A butterfly Single activity Play

A change of nutrient in the culture medium Movie Play

A chytrid – Allomyces Image Play

A clone – an identical copy Single activity Play

A clone – an identical copy Single activity Play

A cross-section of a cap fungus Image Play

A diagram of the glucose conversions in the liver Image Play

A filamentous green alga – Spirogyra Image Play

A fragment of a lamella Image Play

A human as the intermediate host Presentation Play

A hydra Single activity Play

A kangaroo and opossum Image Play

A large amount of water in the organism Movie Play

A liverwort Image Play

A million nephrons in one kidney Single activity Play

A plant viroid Image Play

A proper dosage of the drug Simulation Play

A ragworm Single activity Play

A rod cell's signal-transduction pathway Presentation Play

A short history of the pharmaceutical industry Single activity Play