INTRODUCTION TO BIOLOGY - C190
WGU UNIT REVIEW EXAM
The graph below shows data from a national survey on a wide range of health
characteristics. Hearing tests were conducted as part of the study. The data shown are
based on samples of Americans aged 12-19; 2,928 individuals in 1988-1994 and 1,771
individuals in 2005-2006. Over the same time period, use of MP3 players and other
personal listening devices increased. The Apple iPod was introduced in 2001, and 100
million of them had been sold by April 2007.
What can we conclude from the graph on hearing loss, considering that use of personal
listening devices also increased over the same time period? - Correct Answers -Use of
personal listening devices was associated in time with increased adolescent hearing
loss.
The graph below shows data from a national survey on a wide range of health
characteristics. Hearing tests were conducted as part of the study. The data shown are
based on samples of Americans aged 12-19; 2,928 individuals in 1988-1994 and 1,771
individuals in 2005-2006. Over the same time period, use of MP3 players and other
, personal listening devices increased. The Apple iPod was introduced in 2001, and 100
million of them had been sold by April 2007.
Abundant data have been collected on hearing and hearing loss in teens. Researchers
have also used surveys to find out about the level of noise exposure among teens,
including use of personal listening devices, attendance at concerts, and time spent in
nightclubs.
A researcher thinks there probably is a cause-effect relationship between noise
exposure and hearing loss in teens. If the researcher is interested in analyzing data to
test this idea, what would be a log - Correct Answers -Find out if teens with higher
exposures to noise also have higher rates of hearing loss.
Let's take a look at the structure of the ear to get a better handle on hearing and hearing
loss.
The ear consists of many tissues working together to carry out a task and is best
described as a(n) __________. - Correct Answers -organ
In the cochlea, or inner ear, there are fluid-filled canals whose inner walls are covered
with tiny structures called hair cells. When vibrations arrive at the cochlea, the liquid
inside is agitated. This, in turn, causes the hair cells to vibrate. Attached sensory nerves
convert these vibrations to nervous signals that are carried to the hearing center of the
brain.
WGU UNIT REVIEW EXAM
The graph below shows data from a national survey on a wide range of health
characteristics. Hearing tests were conducted as part of the study. The data shown are
based on samples of Americans aged 12-19; 2,928 individuals in 1988-1994 and 1,771
individuals in 2005-2006. Over the same time period, use of MP3 players and other
personal listening devices increased. The Apple iPod was introduced in 2001, and 100
million of them had been sold by April 2007.
What can we conclude from the graph on hearing loss, considering that use of personal
listening devices also increased over the same time period? - Correct Answers -Use of
personal listening devices was associated in time with increased adolescent hearing
loss.
The graph below shows data from a national survey on a wide range of health
characteristics. Hearing tests were conducted as part of the study. The data shown are
based on samples of Americans aged 12-19; 2,928 individuals in 1988-1994 and 1,771
individuals in 2005-2006. Over the same time period, use of MP3 players and other
, personal listening devices increased. The Apple iPod was introduced in 2001, and 100
million of them had been sold by April 2007.
Abundant data have been collected on hearing and hearing loss in teens. Researchers
have also used surveys to find out about the level of noise exposure among teens,
including use of personal listening devices, attendance at concerts, and time spent in
nightclubs.
A researcher thinks there probably is a cause-effect relationship between noise
exposure and hearing loss in teens. If the researcher is interested in analyzing data to
test this idea, what would be a log - Correct Answers -Find out if teens with higher
exposures to noise also have higher rates of hearing loss.
Let's take a look at the structure of the ear to get a better handle on hearing and hearing
loss.
The ear consists of many tissues working together to carry out a task and is best
described as a(n) __________. - Correct Answers -organ
In the cochlea, or inner ear, there are fluid-filled canals whose inner walls are covered
with tiny structures called hair cells. When vibrations arrive at the cochlea, the liquid
inside is agitated. This, in turn, causes the hair cells to vibrate. Attached sensory nerves
convert these vibrations to nervous signals that are carried to the hearing center of the
brain.
