A microscope has a 10x ocular lens and a 40x objective lens.  What is the total magnification?

Which of the following will not identify a virus?

Biodegradable items placed in landfills readily biodegrade.

BONUS:  After you do a Gram stain, you notice that your cells look funny under a microscope.  Some cells, which are clearly the same shape, look half purple and half red.  All of the statements below could be the problem, but what is the most likely reason?

Match the term with the appropriate explanation.

Which of the following is a CORRECT match? 

Match the toxin with how it works.

BONUS:  viruses have two types of cycles.  In one, they integrate with the cellular DNA and can go dormant.  Each time the cell replicates, it passes on the viral DNA to the daughter cells.  What cycle is this?

Below you will find some examples of disease cases.  Please match the term that BEST applies to each case.  You will use each term once.

_______ happens when two drugs have an affect greater than the sum of their two parts.   _______ happens when the two drugs counteract each other and are less effective together than they would be on their own.