A virtual lab where you carry out the sequential steps to isolate bacterai, purify DNA, PCR amplify the DNA, sequence the 16S ribosomal region and then use the sequence for a blast search of Genbank to finally identify the unknown bacterium.
This site allows a student to test their knowledge of pathogenic bacteria by identifying one to four unknowns. Each case requires the selection and interpretation of appropriate tests.
This animation focuses on the gross anatomy of the human heart. The model of the heart is semitransparent, allowing users to see through the thick cardiac muscle into the four heart chambers.
Students play the role of predators on moths on a tree trunk. Then, they play the role of biologist, analyzing the changing gene frequencies of the moth population and determining if the population evolved over three generations.