The Following Questions Refer to the Paragraph and Graphs Below

question 7

Multiple Choice

The following questions refer to the paragraph and graphs below.
In a hypothetical situation, the National Park Service, which administers Grand Canyon National Park in Arizona, builds a footbridge over the Colorado River at the bottom of the canyon. The footbridge permits interspersal of two closely related antelope squirrels. Previously, one type of squirrel had been restricted to the terrain south of the river, and the other type had been restricted to terrain on the north side of the river. Immediately before and ten years after the bridge's completion, ten antelope squirrels from both sides of the river were collected, blood samples were taken, and frequencies of alleles unique to the two types of antelope squirrels were determined (see graphs below) .


-The data in the graphs above indicate that

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Definitions:

Temporal Lobe's

Pertains to the lobes located on the sides of the brain, primarily involved in processing auditory information and encoding memory.

Auditory Cortex

The part of the brain that processes auditory information, enabling individuals to hear and interpret sounds.

Thalamus

A part of the brain that acts as a relay station, processing and transmitting sensory and motor signals to the cerebral cortex.

Sensorineural Hearing Loss

Hearing loss caused by damage to the cochlea’s receptor cells or to the auditory nerves; the most common form of hearing loss, also called nerve deafness.