In an interactive exercise, learners identify the human body sites that harbor a normal resident flora and the sites that are sterile.

Learners examine the contents of organized microbial plaque and test their knowledge in matching exercises.

In this screencast, students read about the stages of microbial dental plaque formation and the time it takes for each stage to occur.

In this learning activity you'll analyze the basic steps in conjugation and applies the effect to microbial characteristics.