Net Primary Productivity in a Terrarium Could Be Estimated by

question 11

Multiple Choice

Net primary productivity in a terrarium could be estimated by

• A) carefully controlling the amount of light entering it.
• B) counting the change in the number of plant species in it.
• C) weighing the terrarium at regular intervals.
• D) removing the primary consumers and weighing them at regular intervals.

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Definitions:

Causality

Refers to the analysis of causes and their effects. Specifically, causality means that a change in the independent variable (x) produces a change in the dependent variable (y). In analyzing survey data, we establish causality by demonstrating that an association exists between x and y; x precedes y; and the introduction of a causally prior control variable does not result in the original association disappearing.

Empirically Established

Information or theories that are confirmed or supported by observation, experiment, or other forms of scientific research.

Generalizability

The extent to which findings from a study can be applied or extended to broader populations, settings, or times.

Independent Variable

In research, a variable that is manipulated or changed to observe its effects on a dependent variable.