The Following Questions Refer to the Paragraph and Graphs Below

question 36

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 would be a position held by an adherent of the punctuated equilibrium theory?

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Definitions:

F-ratio

A statistical measure used in the context of ANOVA to determine the ratio of variance between groups to the variance within groups.

SAMPLE Size

The total number of subjects included in a study or sampled from a population.

Groups

Sets of subjects or items that are studied in research, often distinguished by certain characteristics or conditions.

F-ratio

A statistic used to compare the variances among group means in an analysis of variance (ANOVA) test.