A Grassland Is Composed Primarily of a Single Type of Grass,with

question 70

Multiple Choice

A grassland is composed primarily of a single type of grass,with small amounts of three other grasses and several forbs.How will this species composition be likely to affect the function of this community?

• A) All species will have an approximately equal effect on function.
• B) The dominant grass will mostly define the function of the community.
• C) The forbs will have the greatest effect on function because they are unique.
• D) All grasses will have an approximately equal effect on function;forbs will have a lesser effect.
• E) The species having the greatest effect on function may vary,depending on the abiotic environment.

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Definitions:

Slope

In mathematics, the rate of change or gradient of a line, indicating its steepness and direction.

Population Regression Line

The line that best describes the relationship between an independent variable and a dependent variable for the entire population.

Population Coefficient

A parameter that quantifies a certain characteristic or attribute of a population.

Correlation

A statistical measurement of the relationship between two variables, indicating how one may predict the other.