Jessica, a single mother, has been unemployed for over a year and stops looking for work due to a lack of childcare options. In this scenario, what is true about the unemployment rate?

Which is true about Koch’s postulates?

Match the following characteristics with Gram-positive or Gram-negative bacteria.  

Match the following characteristics with Gram-positive or Gram-negative bacteria.  

In 2013, there was a foodborne outbreak caused by Listeria in prepackaged refrigerated spinach. An FDA investigation found the California plant producing the spinach product washed the spinach in lukewarm water prior to packaging.  Plant documentation showed the water was to be tested for pathogens every hour during production. However, the water had not been tested nor filtered the two days prior to the first outbreak case. What was the reservoir for this pathogen?

The interior of fruit is considered sterile if the protective fruit coverings are intact. 

The ________________ rate is the total number of deaths in the population due to a given disease, while the ____________________ is the number of people afflicted with a certain disease.     

The toxin produced by Clostridium botulinum is:

Violet Red Bile Agar (VRBA) is used for   

Which is NOT used as a chemical preservative in food?