The Following Questions Refer to the Paragraph and Graphs Below

question 24

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) .


-Which of the following statements about speciation is correct?

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Definitions:

Removing

The act of taking something away or eliminating it.

Album

A collection of audio recordings issued as a single item on CD, record, or digital format, typically by a single artist or band.

File

A collection of data or information that is stored under a specific name on a computer or digital device.

Full Collection

A term referring to the complete set of items or data within a specific category or library.