Human Activities

question 22

Multiple Choice

Human activities

• A) cannot affect the evolution of established pest species of insects.
• B) have eliminated resistant strains of bacteria.
• C) can change patterns of genetic drift.
• D) have increased the size and shape of fish that are intensely harvested.

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Definitions:

Standard Error

A statistical measure that estimates the accuracy with which a sample distribution represents a population by quantifying the variation between sample means if the experiment were repeated.

Sample Contrast

The comparison between different subsets or samples within a study to identify variations or patterns.

Mean Square Error

A statistical measure indicating the average of the squares of the errors or deviations—i.e., the difference between the estimator and what is estimated.

F Statistic

A ratio used in statistical analysis to determine the relationship between variances and to test hypotheses about the means of several populations.