Elephants hear sounds that exist too low for humans to listen to. This sensitivity exists mainly due to the distinctions in the flexibility of the basilar membrane in the cochlea.
The human ear can notice an expansive range of frequencies, from the low rumbles of faraway thunder to the high-pitched whine of a mosquito. The sensory cells that notice these sounds exist are named hair cells, named for the hair-like strands that cluster on their tops.
Elephants have very low-frequency sounds and especially low-frequency sounds were not tested. But we do know from this analysis that elephants keep very good hearing in the infrasonic (below human hearing) range.
Elephants hear sounds that exist too low for humans to listen to. This sensitivity exists mainly due to the distinctions in the flexibility of the basilar membrane in the cochlea.
Therefore, the correct answer is option B) flexibility of the basilar membrane in the cochlea.
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