To Avoid Unknown, Systematic Factors That May Bias the Results

question 74

Multiple Choice

To avoid unknown, systematic factors that may bias the results of an experiment, the experimenter should select a _________ sample from a population and use controlled conditions.

• A) wise
• B) small
• C) random
• D) single

---

Definitions:

Skeletal Material

The substance that forms the supportive framework of an organism, including bone and cartilage in humans.

Fluke-Platyhelminthes

A class of parasitic flatworms within the Phylum Platyhelminthes, including liver flukes and blood flukes, affecting various hosts.

Calcium Crystals

Mineral deposits found in various tissues of the body, often in bones and teeth, contributing to their hardness.

Silica Crystals

Rigid, crystalline structures made of silicon dioxide (SiO2), found in nature as quartz and used industrially and scientifically for various applications.