Kudzu Is a Fast-Growing Vine That Was Introduced to the United

question 44

Multiple Choice

Kudzu is a fast-growing vine that was introduced to the United States in 1876 as a fragrant, ornamental plant and was later used as a source of erosion control. Kudzu grows especially well in the warm, humid climate of the Southeastern United States. In fact, it grows so well that it outgrows and can kill off less successful native plants; it can also kill off areas of forest because it prevents forest tress from receiving sunlight. Kudzu can best be described as

• A)a keystone species.
• B)an invasive species.
• C)a source of primary production.
• D)an abiotic reservoir.

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Definitions:

Expected Frequencies

The predicted counts of occurrences across different categories or intervals that one would expect by chance.

Fisher's Exact Test

A statistical significance test used to determine if there are nonrandom associations between two categorical variables, often employed when sample sizes are small.

Yates' Correction

A continuity correction method used in Chi-square tests to adjust for the discontinuity of a chi-square distribution when working with discrete variables.

Assumption Of Independence

The premise that the observations in a sample or values of variables are not influenced by each other.