WGU C190 Introduction to
Biology Practice Test
Introduction to Biology
(Western Governors University)
, WGU C190 – Introduction to Biology
Detailed Practice Test (OA Style)
Instructions: Choose the best answer unless otherwise stated.
Section 1: Scientific Method & Biology Basics
1. Which statement best describes a hypothesis? A. A proven scientific fact B. A testable explanation for
an observation
C. A scientific law D. A summary of results
2. In an experiment testing fertilizer effects on plant growth, the fertilizer is the: A. Dependent
variable B. Constant C. Control D. Independent variable
3. Why is a control group important? A. It eliminates bias B. It proves a hypothesis C. It provides
a baseline for comparison D. It increases sample size
4. Which is an example of qualitative data? A. Plant height in cm B. Number of organisms C. Color
of leaves D. Temperature in °C
Biology Practice Test
Introduction to Biology
(Western Governors University)
, WGU C190 – Introduction to Biology
Detailed Practice Test (OA Style)
Instructions: Choose the best answer unless otherwise stated.
Section 1: Scientific Method & Biology Basics
1. Which statement best describes a hypothesis? A. A proven scientific fact B. A testable explanation for
an observation
C. A scientific law D. A summary of results
2. In an experiment testing fertilizer effects on plant growth, the fertilizer is the: A. Dependent
variable B. Constant C. Control D. Independent variable
3. Why is a control group important? A. It eliminates bias B. It proves a hypothesis C. It provides
a baseline for comparison D. It increases sample size
4. Which is an example of qualitative data? A. Plant height in cm B. Number of organisms C. Color
of leaves D. Temperature in °C
