Define bacteria and archaea.

 These two terms used to be classified together. 

• Discuss what discoveries lead to the separation of these two groups. 
• Identify the technique(s) that were used to reclassify these organisms. 
• Discuss whether or not archaea has a role in human health and disease.

Discussion Expectations:  

The minimum requirements for class discussions are to respond directly to the discussion prompt and to respond to at least two other posts, by other students or the instructor, by the end of the week. The discussion will close on the due date and will NOT be reopened for a late submission.