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The following table shows the distribution of employees in an organization. Martha Foreman, an analyst, wants to see if race has a bearing on the position a person holds with this company. The column total for directors is ________.
Opportunistic Infections
Infections that occur more frequently and are more severe in individuals with weakened immune systems, such as those with HIV/AIDS or cancer.
Resident Normal Flora
Microorganisms that commonly reside on and in the human body, often providing some degree of protection against pathogenic ones.
Colony
A group of organisms living together, often referring to microorganisms grown in culture or to human settlements in new lands.
Etiologic Agent
A living microorganism or its toxin that may cause human disease.
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