High school biology lesson on bacteria. Covers morphology, metabolism, reproduction, and usefulness of bacteria. Also included, an activity that teaches students the morphology of bacteria. To complete the activity, the teacher should provide each student with 2 poker chips (preferably each should be a different color), one side marked with a sticker. The side with the sticker is the dominant allele, the blank side is the recessive allele. The students must recall how traits are inherited and how organisms express dominant or recessive traits to draw each of their bacteria cells.