Of the Following, ______ Might Be a Reason a Researcher

question 23

Multiple Choice

Of the following, ______ might be a reason a researcher would use a quasi-experiment.

• A) more internally valid than experiments
• B) easier to design
• C) age is their variable of interest
• D) more externally valid than experiments

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Definitions:

Streptococcus Mutans

A species of bacteria that is a major contributor to tooth decay and cavities due to its ability to produce acid from sugars.

Cyanobacteria

Photosynthetic bacteria that produce oxygen as a byproduct of photosynthesis, found in various aquatic environments and historically significant for oxygenating the Earth's atmosphere.

Atmospheric Oxygen

The oxygen that is part of Earth's atmosphere, essential for the respiration of most living organisms and a product of photosynthesis.

Chloroplasts

Organelles found in the cells of plants and other photosynthetic organisms, sites where photosynthesis takes place.