C190 is Western Governors University's introductory biology course, a general education requirement in several programs.
WGU's program guides describe it as a foundational introduction to the biological sciences, exploring the overarching theories of life and the fundamental principles of living organisms and their interaction with the environment.
Key concepts include how organisms use and produce energy, how life grows, develops and reproduces, how life responds to the environment to maintain internal stability, and how life evolves and adapts.
Students often find the vocabulary the steepest part. Biology has many terms, and they make sense only when linked to the processes they describe.
Course at a Glance
| Item | Details |
|---|---|
| University | Western Governors University (WGU) |
| Course code | C190 |
| Level | Undergraduate, general education |
| Format | Competency-based, self-paced |
| Subject area | Introductory biology |
| Assessment | Check your course page for the current assessment type |
What C190 Covers
| Big idea from WGU's description | Typical topics |
|---|---|
| Using and producing energy | Cells, enzymes, photosynthesis, cellular respiration |
| Growth, development and reproduction | Cell division, DNA, inheritance |
| Maintaining internal stability | Homeostasis, feedback loops, body systems |
| Evolution and adaptation | Natural selection, ecosystems, populations |
Key Concepts Explained
Photosynthesis and Respiration
Photosynthesis uses light energy to turn carbon dioxide and water into glucose and oxygen. Cellular respiration does roughly the reverse, releasing energy from glucose as ATP. Together they cycle energy and matter through living things.
Inheritance with a Punnett Square
Each parent passes one allele of a gene to its offspring. A Punnett square shows the possible combinations.
Example: In pea plants, purple flowers (P) are dominant over white (p). Crossing two Pp plants gives PP, Pp, Pp and pp: a 3:1 ratio of purple to white. Each offspring has a 25% chance of being white.
Homeostasis and Negative Feedback
Organisms keep internal conditions within a narrow range. Negative feedback reverses a change once it is detected.
Example: After a meal, blood glucose rises. The pancreas releases insulin, which helps cells take up glucose, so levels fall back. When glucose drops too low, glucagon triggers the release of stored glucose. The system keeps correcting in the opposite direction to the change.
Natural Selection
Individuals vary, some variation is inherited, and individuals with traits better suited to their environment tend to leave more offspring. Over generations, those traits become more common.
Biology as a Science
Introductory biology also teaches how biologists know what they know. Hypotheses are tested with controlled experiments, and a good experiment changes one independent variable while keeping others constant.
When a question describes a study, identify the variable changed, the variable measured and the controls. Then ask whether the conclusion goes beyond the evidence. This skill also helps you read health news critically.
Typical Tasks and How to Approach Them
| Task type | What it tests | How to approach it |
|---|---|---|
| Explain a process | Understanding mechanisms | Describe steps in order with correct terms |
| Genetics problem | Applying inheritance rules | Write genotypes, draw the square, state ratios |
| Experiment question | Scientific method | Name variables, controls and limits |
| Ecology scenario | Interactions with environment | Trace energy and effects through the system |
Cells: The Starting Point
Every big idea in the course rests on cells. Prokaryotic cells, such as bacteria, lack a nucleus; eukaryotic cells, such as those in plants and animals, have a nucleus and membrane-bound organelles.
| Organelle | Main job |
|---|---|
| Nucleus | Holds DNA and controls the cell |
| Mitochondria | Release energy through respiration |
| Chloroplasts (plants) | Carry out photosynthesis |
| Ribosomes | Build proteins |
| Cell membrane | Controls what enters and leaves |
Energy Through Ecosystems
WGU's description also covers how organisms interact with the environment. In an ecosystem, producers such as plants capture energy from sunlight, consumers eat producers or other consumers, and decomposers recycle nutrients.
Only a small share of energy passes from one level of a food chain to the next, because much is used for living or lost as heat. That is why food chains rarely have more than four or five levels.
Where Students Get Stuck
- Mitosis versus meiosis. Mitosis makes identical body cells; meiosis makes sex cells with half the chromosomes.
- Genotype versus phenotype. Genotype is the alleles; phenotype is the visible trait.
- Evolution misconceptions. Individuals do not evolve during their lives; populations change over generations.
- Memorizing terms in isolation. Learn each term within the process it belongs to.
Study Tips for C190
- Draw processes as flow diagrams: photosynthesis, respiration, feedback loops.
- Practice several Punnett squares until they are quick.
- Group terms by the four big ideas in WGU's description.
- Use your course's practice questions regularly and review mistakes.
How We Help with C190
Tell us which topics are difficult and share study guides or task instructions. A biology tutor prepares explanations, diagrams and practice questions, or reviews your written work. See also our lab report guide if your task involves an experiment write-up.
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Frequently Asked Questions
WGU describes how organisms use and produce energy, how life grows, develops and reproduces, how it maintains internal stability, and how it evolves and adapts.
Check your WGU course page for the current assessment.
Basic chemistry helps with energy topics, but C190 is an introductory course. Check your degree plan for any order requirements.
The maintenance of stable internal conditions, such as body temperature and blood glucose, usually through negative feedback.
Practice: write genotypes clearly, set up the square carefully and convert results into ratios and percentages.
No. We never take exams or access student accounts. We provide tutoring and explanations.