The Best Way to Reclaim an Ecosystem That Is Extensively

question 74

Multiple Choice

The best way to reclaim an ecosystem that is extensively damaged is to ____.​

• A) ​allow natural succession to take over
• B) ​remove all predators from the area
• C) ​seed the area with a type of grass
• D) ​bring in beneficial insects
• E) implement ecological restoration​

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Definitions:

Matched Pairs

Matched pairs refer to a study design in statistics where pairs of subjects are matched in terms of key variables that are thought to affect the outcome of interest, and then compared on the outcome, often used to control for confounding variables.

Ordinal

A scale of measure that categorizes data while also ranking them in a meaningful order, but without indicating the exact differences between ranks.

Sign Test

A nonparametric statistical test used to determine if there are differences between two paired samples.

T-test

A statistical method used to determine if there is a significant difference between the means of two groups, which may be related in certain features.