Which of the Following Is True Regarding Possible Impacts on Ecosystems

question 170

Multiple Choice

Which of the following is true regarding possible impacts on ecosystems that might occur as a result of climate change?

• A) Studies have demonstrated there will be no impact on plant distributions.
• B) The transition between prairie grasslands and northern forests is now in central Nebraska and is unchanging.
• C) The transition between prairie grasslands and northern forests is expected to move northward with increasing temperatures.
• D) Beech trees in eastern North America will not change in distribution.

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Definitions:

Criterion Variable

The outcome variable that is predicted based on one or more predictor variables in regression analysis.

Linear Regression Equation

A formula to determine the line of best fit in a dataset, depicting how the dependent variable is influenced by one or more independent variables.

Slope

A measure of the steepness or incline of a line, typically represented as the ratio of the rise over the run between two points on a graph.

Y-intercept

The Y-intercept of a linear equation is the point where the line crosses the Y-axis on a graph, representing the value of the dependent variable when the independent variable is zero.