What is NOT a symptom of aging affecting hearing?
A. Difficulty understanding spoken words, especially against background noise.
B. A constant ringing sound in the ears.
C. Enhanced perception of high-frequency sounds.
D. Needing to increase the volume on the television.
Select your answer:
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Digestive System › Viewwhat are the parts of the digestive system
A. stomach,small and large intestine
B. mouth,stomach,esophagus,large and small intestine
Biotechnology › View
Why do the fragments of DNA in gel electrophoresis travel away from the negative electrode?
A. DNA is negatively charged and attracted to the positive end of the unit
B. DNA is positively charged and attracted to the negative end of the unit
C. the agarose gel is negatively charged
D. the agarose gel is positively charged