Answer:
Option E
sensorineural hearing loss typically begins in high-frequency hair cells
Explanation:
In presbycusis, most old people cannot hear the high-frequency sounds, because of some loss of hair cells in their cochlea. unlike some other vertebrates like fishes and reptiles, these hair cells can be re-generated. However, in Humans, they cannot be.
As a result of these sounds that have higher pitches such as the buzzing of a mosquito, are muffled to them. Therefore, talking in a frequency is necessary, as this will aid the old people hear the medical technicians better.
False should be you answer
Answer:
Research suggests that sleep helps learning and memory in two distinct ways. First, a sleep-deprived person cannot focus attention optimally and therefore cannot learn efficiently. Second, sleep itself has a role in the consolidation of memory, which is essential for learning new information.
Explanation:
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