WGU Introduction-to-Biology Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Energy and Metabolism | 15–20% | - Energy flow in biological systems - Cellular respiration - Enzymes and metabolic pathways - Photosynthesis |
| Topic 2: Basic Principles of Life | 20–25% | - Cell structure and function - Chemical foundations of life - Scientific method and biological inquiry - Characteristics of living organisms |
| Topic 3: Evolution and Diversity of Life | 15–20% | - Overview of major biological groups - Speciation and classification - Natural selection and adaptation - Mechanisms of evolution |
| Topic 4: Genetics and Heredity | 20–25% | - Mendelian and non-Mendelian inheritance - Gene expression and protein synthesis - DNA structure and replication - Mutation and genetic variation - Chromosomes and cell division |
| Topic 5: Ecology and Interdependence | 15–20% | - Biomes and global ecology - Human impact on ecosystems - Ecosystem structure and energy flow - Community interactions - Population dynamics |
WGU Introduction to Biology (KBC1, C190) Sample Questions:
Question 1
Which statement correctly describes the flow of information duringgene expression?
A. DNA is formed from protein, then RNA is formed from DNA
B. RNA is formed from protein, then DNA is formed from RNA
C. DNA is formed from RNA, then protein is formed from DNA
D. RNA is formed from DNA, then protein is formed from RNA
Question 2
Which statement correctly describes how anionic bondforms?
A. Two atomic nuclei fuse to form a single molecule
B. An electron is transferred from one atom to another
C. Two ions share several pairs of electrons
D. Two atoms are attracted to a nearby hydrogen atom that binds them together
Question 3
Rabbit populations rise and fall over 8-10 years; wolf populations in the same area follow with a ~2-year lag.
What is the relationship between wolves and rabbits?
A. Competition
B. Mutualism
C. Symbiosis
D. Predator-prey
Question 4
The humanMN blood groupis determined by two codominant alleles (MandN). In one family,alloffspring are MN. What are themost probable genotypesof the parents?
A. MM and NN
B. MN and MN
C. NN and MN
D. MM and MN
Question 5
Coral reefs are built from calcium carbonate secretions of coral polyps and support diverse communities, but many are shrinking due to climate change. Which activity would have a negative impact on coral reef biodiversity?
A. Increasing use of fossil fuels
B. Increasing the use of renewable energy sources
C. Increasing use of sustainable technologies
D. Developing technologies that reduce pollutants
Solutions:
| Question 1 Answer: D | Question 2 Answer: B | Question 3 Answer: D | Question 4 Answer: A | Question 5 Answer: A |
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