[STUDY GUIDE] • HIGH-YIELD PRACTICE & REVIEW EDITION
WGU C190 Intro to Biology Objective
Assessment (OA) Exam Questions &
Answers, Comprehensive Updated
2026/2027 Edition, Western Governors
University
Comprehensive Examination Question Bank • In-Depth Rationales • Concept Mapping
TOTAL QUESTIONS EXAM TOPICS RATIONALES
100 Questions 7 Modules 100% Verified
DOCUMENT OVERVIEW
This document contains 100 verified questions with correct answers and detailed rationales covering
foundational concepts in biology. It directly aligns with introductory biology courses and is suitable for study,
review, and certification preparation, providing clear insights into cellular functions, genetic information
storage, and metabolic processes.
EXAM BLUEPRINT & TOPIC DISTRIBUTION
Systematic breakdown of subject domains and exam coverage.
Topic Module Scope & Core Focus Questions Share (%)
This topic covers the foundational concepts of scientific
Scientific Method and Principles inquiry and principles in biology. 15 Qs 15.0%
This topic examines the roles of various organelles and
Cell Structure and Function cellular structures in biological processes. 15 Qs 15.0%
This topic focuses on the types of macromolecules,
Genetic Information and particularly nucleic acids, and their role in genetic information
Macromolecules storage and processing. 14 Qs 14.0%
Cell Metabolism and Energy This topic explores metabolic pathways, including cellular
Production respiration and photosynthesis. 14 Qs 14.0%
Confidential • Student Study Edition • Practice & Review Guide Page 1 of 42
,STUDENT STUDY & MASTERY EDITION PRACTICE & REVIEW GUIDE
This topic details the stages of the cell cycle and the
Cell Cycle and Division processes involved in cell division. 14 Qs 14.0%
This topic discusses evolutionary concepts, including natural
Evolution and Natural Selection selection and speciation. 14 Qs 14.0%
This topic covers ecological concepts, including species
Ecological Principles interactions and conservation strategies. 14 Qs 14.0%
Total Exam Coverage 7 Integrated Topic Modules 100 Qs 100.0%
Confidential • Student Study Edition • Practice & Review Guide Page 2 of 42
,STUDENT STUDY & MASTERY EDITION PRACTICE & REVIEW GUIDE
TOPIC 1: SCIENTIFIC METHOD AND PRINCIPLES
15 Questions • 15.0% of Exam • This topic covers the foundational concepts of scientific inquiry and principles in biology.
QUESTION 1
What is the primary function of the scientific method in biology?
[A] To provide a theoretical framework for understanding biological phenomena
[B] To develop new technologies for biological research
[C] To test hypotheses and explain biological observations
[D] To describe the structure and function of living organisms
Correct Answer: To test hypotheses and explain biological observations.
Rationale: The scientific method is a systematic process used to develop and test scientific knowledge, and in biology, it is
used to test hypotheses and explain biological observations.
QUESTION 2
Which of the following is an example of a scientific principle in biology?
[A] The theory of evolution
[B] The law of conservation of energy
[C] The concept of homeostasis
[D] The process of photosynthesis
Correct Answer: The concept of homeostasis.
Rationale: Homeostasis is a scientific principle in biology that refers to the ability of living organisms to maintain a stable
internal environment despite changes in the external environment.
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QUESTION 3
What is the purpose of the scientific theory of evolution?
[A] To explain the diversity of life on Earth
[B] To describe the structure and function of living organisms
[C] To develop new technologies for biological research
[D] To test hypotheses and explain biological observations
Correct Answer: To explain the diversity of life on Earth.
Rationale: The scientific theory of evolution provides a framework for understanding the diversity of life on Earth and how
species have changed over time through the process of natural selection.
QUESTION 4
What is the role of scientific analysis in the biological sciences?
[A] To collect data and make observations
[B] To develop and test hypotheses
[C] To interpret data and draw conclusions
[D] To communicate results to others
Correct Answer: To interpret data and draw conclusions.
Rationale: Scientific analysis is the process of interpreting data and drawing conclusions based on that data, and it is a
critical
step in the scientific method.
Confidential • Student Study Edition • Practice & Review Guide Page 4 of 42
WGU C190 Intro to Biology Objective
Assessment (OA) Exam Questions &
Answers, Comprehensive Updated
2026/2027 Edition, Western Governors
University
Comprehensive Examination Question Bank • In-Depth Rationales • Concept Mapping
TOTAL QUESTIONS EXAM TOPICS RATIONALES
100 Questions 7 Modules 100% Verified
DOCUMENT OVERVIEW
This document contains 100 verified questions with correct answers and detailed rationales covering
foundational concepts in biology. It directly aligns with introductory biology courses and is suitable for study,
review, and certification preparation, providing clear insights into cellular functions, genetic information
storage, and metabolic processes.
EXAM BLUEPRINT & TOPIC DISTRIBUTION
Systematic breakdown of subject domains and exam coverage.
Topic Module Scope & Core Focus Questions Share (%)
This topic covers the foundational concepts of scientific
Scientific Method and Principles inquiry and principles in biology. 15 Qs 15.0%
This topic examines the roles of various organelles and
Cell Structure and Function cellular structures in biological processes. 15 Qs 15.0%
This topic focuses on the types of macromolecules,
Genetic Information and particularly nucleic acids, and their role in genetic information
Macromolecules storage and processing. 14 Qs 14.0%
Cell Metabolism and Energy This topic explores metabolic pathways, including cellular
Production respiration and photosynthesis. 14 Qs 14.0%
Confidential • Student Study Edition • Practice & Review Guide Page 1 of 42
,STUDENT STUDY & MASTERY EDITION PRACTICE & REVIEW GUIDE
This topic details the stages of the cell cycle and the
Cell Cycle and Division processes involved in cell division. 14 Qs 14.0%
This topic discusses evolutionary concepts, including natural
Evolution and Natural Selection selection and speciation. 14 Qs 14.0%
This topic covers ecological concepts, including species
Ecological Principles interactions and conservation strategies. 14 Qs 14.0%
Total Exam Coverage 7 Integrated Topic Modules 100 Qs 100.0%
Confidential • Student Study Edition • Practice & Review Guide Page 2 of 42
,STUDENT STUDY & MASTERY EDITION PRACTICE & REVIEW GUIDE
TOPIC 1: SCIENTIFIC METHOD AND PRINCIPLES
15 Questions • 15.0% of Exam • This topic covers the foundational concepts of scientific inquiry and principles in biology.
QUESTION 1
What is the primary function of the scientific method in biology?
[A] To provide a theoretical framework for understanding biological phenomena
[B] To develop new technologies for biological research
[C] To test hypotheses and explain biological observations
[D] To describe the structure and function of living organisms
Correct Answer: To test hypotheses and explain biological observations.
Rationale: The scientific method is a systematic process used to develop and test scientific knowledge, and in biology, it is
used to test hypotheses and explain biological observations.
QUESTION 2
Which of the following is an example of a scientific principle in biology?
[A] The theory of evolution
[B] The law of conservation of energy
[C] The concept of homeostasis
[D] The process of photosynthesis
Correct Answer: The concept of homeostasis.
Rationale: Homeostasis is a scientific principle in biology that refers to the ability of living organisms to maintain a stable
internal environment despite changes in the external environment.
Confidential • Student Study Edition • Practice & Review Guide Page 3 of 42
, STUDENT STUDY & MASTERY EDITION PRACTICE & REVIEW GUIDE
QUESTION 3
What is the purpose of the scientific theory of evolution?
[A] To explain the diversity of life on Earth
[B] To describe the structure and function of living organisms
[C] To develop new technologies for biological research
[D] To test hypotheses and explain biological observations
Correct Answer: To explain the diversity of life on Earth.
Rationale: The scientific theory of evolution provides a framework for understanding the diversity of life on Earth and how
species have changed over time through the process of natural selection.
QUESTION 4
What is the role of scientific analysis in the biological sciences?
[A] To collect data and make observations
[B] To develop and test hypotheses
[C] To interpret data and draw conclusions
[D] To communicate results to others
Correct Answer: To interpret data and draw conclusions.
Rationale: Scientific analysis is the process of interpreting data and drawing conclusions based on that data, and it is a
critical
step in the scientific method.
Confidential • Student Study Edition • Practice & Review Guide Page 4 of 42
