370782
Descripción
Test por Beth Ritchie, actualizado hace más de 1 año
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Creado por Beth Ritchie
hace más de 10 años
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Pregunta 1
Pregunta
What is a pathogen?
Respuesta
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A microorganism that causes disease
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A virus that causes disease
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A microorganism that causes infection
Pregunta 2
Pregunta
In which two ways do pathogens cause disease?
Respuesta
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Damaging host tissues and producing viruses
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Damaging host DNA and producing viruses
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Damaging host tissues and producing toxins
Pregunta 3
Pregunta
What is a correlation?
Respuesta
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When one variable changes
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When a change in one of two variables is reflected by a change in the other variable
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When a change in two variables proves there is a link, and is backed up with experimental evidence
Pregunta 4
Pregunta
What is a causal link?
Respuesta
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Where one variable changes, and a change in another variable is present
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When a conclusion can be made from a graph
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When experimental evidence proves one thing directly caused another
Pregunta 5
Pregunta
What is risk?
Respuesta
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A measure of the probability that damage to health will occur as a result of a given hazard
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A measure of how likely it is for a hazard to occur
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A measure of how likely it is for health to be affected
Pregunta 6
Pregunta
What is the single most effective way of increasing life expectancy?
Respuesta
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Drinking one unit of alcohol per day
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Giving up smoking
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Increasing physical activity
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