Answer:
the answer is c due to the answers provided
Answer:
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Answer:
Natural selection
Explanation:
According to Darwin, natural selection is the mechanism through which evolution takes place. Natural selection is the mechanism through which the heritable traits characteristic changes in an organism over the generations. Variations in traits of organisms are passed down through the generations and each generation has their genes affected by the environment.
Answer:
The frequency theory of hearing
Explanation:
The frequency theory of hearing contends that the perception of a sound's frequency depends on how often the auditory nerve fires.
The frequency theory of hearing pinpoints that the frequency of the auditory nerve's impulses coincides to the frequency of a tone, which makes it easy to distinguish its pitch. It causes the neural signals speed to go in line with the brain to distinguish the pitch.
Place theory says that the perception of pitch is connected with vibration of certain portions of the basilar membrane, and the frequency theory says the perception of pitch is connected with the frequency at which the whole basilar membrane vibrates.
