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Last Updated: Oct 11, 2026
No. of Questions: 80 Questions & Answers with Testing Engine
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Don't let the exam become your stumbling block. The WGU Introduction to Biology (KBC1, C190) test engine at ActualTestsQuiz — a leader in this line: 80 practice questions for the Introduction-to-Biology exam.
WGU Introduction-to-Biology Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Cell Biology | 25% | - Cell Structure and Organelles - Cell Membrane Transport - Cell Division (Mitosis, Meiosis) - Cell Communication |
| Plant and Animal Biology | 15% | - Human Biology (Circulatory, Respiratory, Nervous, etc.) - Plant Structure and Function - Homeostasis - Animal Tissues and Organ Systems |
| Evolution and Ecology | 20% | - Speciation and Phylogeny - Ecosystems and Biomes - Conservation Biology - Natural Selection - Population Ecology |
| Biochemistry | 15% | - Cellular Energy (ATP, Cellular Respiration, Photosynthesis) - Enzymes and Metabolism - Structure and Function of Biomolecules |
| Genetics | 25% | - Gene Expression (Transcription, Translation) - Biotechnology - Modern Genetics and Heredity - Mendelian Genetics - Genetic Mutations and Disorders - DNA Structure and Replication |
WGU Introduction-to-Biology Exam: Engine Answers
The WGU Introduction to Biology (KBC1, C190) is WGU's certification exam for Courses and Certificates, at the Undergraduate level. It's demanding enough to intimidate — timed practice is the cure.
120 minutes for 65 questions. The ActualTestsQuiz APP engine imitates the real test — set timed exams, mark performance, point out mistakes — so exam day feels rehearsed.
The WGU Introduction to Biology (KBC1, C190) blueprint spans 5 domains — including Evolution and Ecology (20%), Genetics (25%), Plant and Animal Biology (15%). The complete outline above lists every subtopic; our IT staff keep the material aligned daily.
None required. This is a standard first-course biology exam. Eligibility rules change over time, so verify the current requirements on the official page (official Introduction-to-Biology exam page) before registering.
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WGU Introduction to Biology (KBC1, C190) Sample Questions:
A researcher studies an organism with these traits:~0.3 #msize, cell membrane enclosing contents,free ribosomesin cytoplasm, andgenetic material loosely distributedin the cytoplasm. Which statement is true?
- A. It is a eukaryote with both a cell membrane and cell wall.
- B. It is a prokaryote because it is microscopic.
- C. It is a prokaryote because it lacks a nucleus.
- D. It is a eukaryote because it contains ribosomes.
Correct Answer: C 🗳️
A gene sequenceCGCATACGGTACencodes a peptide (Arg-Ile-Arg-Tyr). A mutation inserts aGafter the secondC. How will this most likely affect the phenotype?
- A. No effect; only the second amino acid changes
- B. Affects phenotype; only the first amino acid changes
- C. No effect; protein will be identical
- D. Affects phenotype; all amino acids after the first will change (frameshift)
Correct Answer: D 🗳️
The Mojave Desert is hot and dry. Roadrunners (endothermic, ground-dwelling birds) already have adaptations that reduce daytime heat gain. If average temperatures rise as predicted, how is theirplumagemost likely to change under natural selection?
- A. Become lighter to increase reflection of heat
- B. Become darker to absorb more environmental heat
- C. Become thicker to trap more heat
- D. Become longer to increase heat absorption
Correct Answer: A 🗳️
A farmer breeds sheep fordisease resistanceandfine wool. After decades, the flock consistently shows both traits. Which evolutionary mechanism changed the flock's gene pool?
- A. Artificial selection
- B. Sexual selection
- C. Gene flow
- D. Natural selection
Correct Answer: A 🗳️
Which statement correctly describes the flow of information duringgene expression?
- A. RNA is formed from DNA, then protein is formed from RNA
- B. DNA is formed from protein, then RNA is formed from DNA
- C. DNA is formed from RNA, then protein is formed from DNA
- D. RNA is formed from protein, then DNA is formed from RNA
Correct Answer: A 🗳️
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