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Which of the Following Statements Is True

question 39

Multiple Choice

Which of the following statements is true?

Appreciate the importance of pollinators and other ecosystem services for human well-being.
Differentiate between types of ecosystem services and their examples.
Understand the effects of increased atmospheric CO2 on marine ecosystems, particularly coral reefs.
Recognize the significance of microbial action in global biogeochemical cycles like nitrogen and sulfur.

Definitions:

Dependent Variable

In an experimental study, it is the variable being tested and measured, expected to change as a result of manipulations to the independent variable.

Independent Variable

A variable in an experiment that is manipulated or changed by the researcher to study its effects on the dependent variable.

Extraneous Variable

A variable that is not of interest in a study but may affect the outcome of the experiment if not controlled.

Control Group

In research, a control group is a group of subjects not exposed to the experimental treatment, used as a benchmark to measure the effect of the treatment.

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