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Questions and Answers
What is the commonly given human hearing range in hertz?
20 to 20,000 Hz
What is a routine investigation for hearing loss that involves a graph of threshold levels relative to a normal?
an audiogram
What is considered normal in terms of sensitivity to higher frequencies with age?
a gradual loss of sensitivity
Give an example of an animal species that can hear frequencies well beyond the human hearing range.
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What is a basic measure of hearing that is represented by a graph of the absolute threshold of hearing at various frequencies?
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