True/False: Antimicrobials in animal feeds can select for resistant bacteria in animal GI tract. This can lead to resistant microbes being spread in manure.

Fill in the blank: A _____________ is a signaling proteins that allows cells to communicate with each other, leading to the initiation and coordination of immune responses.

Match the description with the correct white blood cell (WBC): A WBC that matures into a macrophage.

Match the description with the correct lymphocyte: Indirectly destroys extracellular pathogens by releasing cytokines to stimulate other leukocytes.

Many Candida species can only cause diseases in a weakened host. What would you define these Candida species as?

Fill in the blank: ______________ allow bacteria to become highly resistant to environmental stress such as radiation, heat, drying, freezing, chemicals. This structure is not present in all bacteria. 

True/False: Once engulfed by a macrophage, some bacteria can live inside the macrophage without being destroyed by phagocytosis.

Due to an aggressive vaccine campaign, Measles had been effectively controlled in the United States. However, due to a reduced number of people getting the Measles vaccine, Measles is now resurfacing in the population. Based solely on the information provided above, the rubeola (Measles) pathogen/disease is an example of …

Fill in the blank: A virus infects the lung tissue of humans. Lung tissue are considered the ______ of this virus.

Fill in the blank: A patient had a skin abrasion that served as a portal of entry for a pathogen. Due to the skin abrasions, the pathogen was able to bypass _______ cells that when intact block pathogen entry. Hint: These cells line every body cavity and entrance.