An Epidemiologist Uses the Epidemiological Triangle to Explain the Occurrence

question 15

Multiple Choice

An epidemiologist uses the epidemiological triangle to explain the occurrence of disease by looking at the three main components of the model: the host, the environment, and the agent. The PHN understands that the agent could be one of many types except:

• A)Biological and chemical.
• B)Nutritive.
• C)Physical.
• D)Ecological.

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Definitions:

Alkene

Unsaturated hydrocarbons with at least one double bond between carbon atoms, exhibiting properties like addition reactions.

(Z)-2-Chloro-4-Ethylhex-2-Ene

A geometric isomer of an organic compound characterized by a specific arrangement of atoms, including a chloride and ethyl group.

(Z)-1-Chloro-1-Fluoro-1-Butene

A geometric isomer of a chlorofluorinated butene, characterized by having the chlorine and fluorine on the same side of the double bond.

Carbon-Carbon Double Bond

A chemical bond between two carbon atoms involving four bonding electrons instead of the usual two, giving the molecule added stability and reactivity.