Which of the Following Statements Best Describes the Interaction Between

question 10

Multiple Choice

Which of the following statements best describes the interaction between fire and ecosystems?

• A) The likelihood of a wildfire occurring in a given ecosystem is highly predictable over the short term.
• B) Many kinds of plants and plant communities have adapted to frequent fires.
• C) The suppression of forest fires by man has prevented certain communities, such as grasslands, from reaching their climax stage.
• D) Chaparral communities have evolved to the extent that they rarely burn.
• E) Fire is unnatural in ecosystems and should be prevented.

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Definitions:

One-Sample Test

A statistical test used to determine whether a sample mean significantly differs from a known or hypothesized population mean.

Hypothesized Proportion Value

A specified value of a population proportion in hypothesis testing that serves as the basis for comparing with the proportion observed in the sample data.

Proportion

A part, share, or number considered in comparative relation to a whole; a fraction or percentage of a total.

Z-Test

A statistical test used to determine whether two population means are different when the variances are known and the sample size is large.