WGU C736: Evolution

What C736 Evolution is really about

WGU C736: Evolution — officially titled Evolutionary Biology in WGU's catalog — is a 3-CU science-content course that sits inside WGU's Science Education (Secondary Biology) programs within the School of Education. It is built for future and current biology teachers, so it asks you to do two things at once: master the science of how life changes over time, and understand it well enough to eventually explain it to a classroom of students. The course walks through the core mechanisms of evolution, the evidence that supports it (including fossil and molecular data), how new species arise, and why biodiversity and conservation matter.

Direct answer: To pass C736, learn the four mechanisms of evolutionary change cold (natural selection, genetic drift, gene flow, and mutation), get comfortable reading phylogenetic trees and working Hardy-Weinberg problems, then use WGU's pre-assessment to find your weak spots and drill those until the concepts feel automatic. Understanding why each process happens beats memorizing definitions.

Because this is a teaching-track course, the emphasis is on conceptual understanding and applying ideas to real biological scenarios rather than rote recall alone. You'll connect fossil and molecular (DNA) evidence to the processes that produced it, reason through cause and effect, and think about how these ideas hold together as a single explanatory framework. That framing matters: if you study for genuine comprehension, the assessment tends to feel fair rather than tricky.

Topics the objective assessment covers

C736 is assessed by a single proctored Objective Assessment (OA) — a multiple-choice exam. There is no performance assessment (no papers or projects) for this course. Based on the published course description, plan to be solid on:

• Mechanisms of evolution — natural selection, genetic drift, gene flow, and mutation, and how each changes allele frequencies in a population.
• Population genetics — allele and genotype frequencies, and the Hardy-Weinberg equilibrium as a model of what happens when a population is not evolving.
• Speciation — how reproductive isolation leads to new species, including allopatric versus sympatric patterns and concepts like adaptive radiation.
• Evidence for evolution — the fossil record, comparative anatomy, biogeography, and molecular/DNA evidence, and how they reinforce one another.
• Phylogenetics and classification — reading and interpreting phylogenetic trees and cladograms, and what shared traits reveal about common ancestry.
• Biodiversity and conservation — how environmental change affects populations and ecosystems, and why maintaining diversity matters.
• Teaching evolution — approaching the topic through evidence and critical thinking, which reflects the course's education focus.

How hard is it, and how long will it take?

Difficulty here is genuinely personal. If you have a recent biology background, many students report that C736 is one of the more approachable science courses and can be completed in a couple of focused weeks. If evolution and genetics are new or rusty for you, expect it to take longer and to lean more on the videos and outside resources below. A fair planning assumption for most people is roughly two to four weeks of steady study, adjusted to your starting point and weekly hours.

The concepts that most often slow students down are the quantitative and visual ones — Hardy-Weinberg calculations and interpreting phylogenetic trees — rather than pure vocabulary. Treat those as skills to practice repeatedly, not facts to reread, and the course becomes noticeably more manageable.

A study plan that fits this course

Evolution rewards a few specific study techniques. Build your plan around them rather than around passive rereading:

• Start with a diagnostic. Take the WGU pre-assessment early, before you feel ready. Its job is to show you where the gaps are so you don't waste time on material you already know.
• Use active recall. After each module, close the book and write out, from memory, how a mechanism works — for example, "genetic drift changes allele frequencies by random chance, and its effect is strongest in small populations." Check what you missed, then repeat. This is far more effective than highlighting.
• Space your reviews. Revisit earlier topics on a rotating schedule (day 1, day 3, day 7) so speciation and evidence don't fade while you're learning phylogenetics. Spaced repetition is ideal for the heavy terminology.
• Practice the calculations by hand. Work several Hardy-Weinberg problems from setup to answer without looking at a solution. Being able to move between allele frequencies (p and q) and genotype frequencies is a skill you build only by doing it.
• Draw and read trees. Sketch simple phylogenetic trees and practice reading real ones: which organisms share the most recent common ancestor, what a node represents, and why branch position matters.
• Learn visually where it helps. Free, reputable resources such as Khan Academy's evolution unit and UC Berkeley's Understanding Evolution site are excellent for the mechanisms and for interactive examples.
• Explain it out loud. Because you're training to teach, practice explaining each concept as if to a student. If you can teach it simply, you understand it — and that mirrors how the course wants you to think.

A workable rhythm: spend your first stretch on the mechanisms and population genetics, your middle stretch on speciation, evidence, and phylogenetics, and your final stretch reviewing weak areas and retaking the pre-assessment until your scores are consistently strong.

Common mistakes to avoid

• Memorizing definitions without mechanisms. Knowing that "genetic drift" is a term won't help if you can't say when it dominates and why. Focus on cause and effect.
• Confusing similar-sounding concepts. Allopatric versus sympatric speciation, genetic drift versus gene flow, and micro- versus macroevolution are frequent mix-ups. Compare them side by side.
• Skipping Hardy-Weinberg practice. Reading the equation is not the same as solving problems with it. Under exam pressure, unpracticed math is where points slip away.
• Misreading phylogenetic trees. Assuming that species closer together on the page are more related, or that a tree shows "higher" and "lower" organisms, leads to wrong answers.
• Treating the pre-assessment as the finish line. It's a guide, not a guarantee. Use it to redirect study, and make sure you understand the reasoning behind each answer.
• Cramming a conceptual course. Evolution builds on itself; last-minute memorizing rarely holds. Short, spaced sessions beat one long night.

C736 Readiness Checklist

Before you schedule the OA, ask yourself whether you can honestly do each of these:

• Can you define natural selection, genetic drift, gene flow, and mutation, and describe how each changes a population over generations?
• Can you explain what Hardy-Weinberg equilibrium models and work a problem from allele frequencies to genotype frequencies?
• Can you distinguish allopatric from sympatric speciation and give an example of each?
• Can you interpret a phylogenetic tree — identifying common ancestors and relationships — without second-guessing yourself?
• Can you connect specific evidence (fossil, anatomical, molecular) to the evolutionary processes it supports?
• Can you describe how environmental change and biodiversity loss affect populations and ecosystems?
• Can you explain adaptive radiation, the bottleneck effect, and the founder effect in plain language?
• Are your pre-assessment scores consistently landing in a comfortable passing range across all topic areas?

If you're nodding to most of these, you're likely ready. For related science content in the same program, our guides to C888 Molecular and Cellular Biology and C925 Earth Inside and Out pair naturally with this one, and the C339 Cohort Seminar guide covers the teaching-program side. You can also browse the full School of Education hub or the complete guide index.

C736 FAQ

Is WGU C736 an OA or a PA?

C736 is assessed by a single Objective Assessment (OA) — a proctored, multiple-choice exam. There is no performance assessment, so you won't submit essays or projects for this course.

Is C736 Evolution hard?

Most students find it manageable, especially with a recent biology background. The concepts that cause the most trouble are Hardy-Weinberg calculations and reading phylogenetic trees, so treat those as skills to practice rather than facts to memorize.

How long does C736 usually take?

It varies with your background and weekly study time. Many students report finishing in roughly two to four weeks of focused work; give yourself more time if genetics and evolution are new to you.

What should I study first?

Begin with the four mechanisms of evolutionary change — natural selection, genetic drift, gene flow, and mutation — because nearly everything else, including population genetics and speciation, builds on them. Then move to evidence and phylogenetics.

Does the pre-assessment reflect the real exam?

The pre-assessment is designed to check your readiness on the same objectives, so it's a strong indicator of where you stand. Use it to target weak areas, and make sure you understand the reasoning behind each answer rather than just the correct choice.

What free resources help most for this course?

Alongside your WGU course materials, reputable free tools like Khan Academy's evolution unit and UC Berkeley's Understanding Evolution site are widely used for the mechanisms, speciation, and interactive examples. Short concept videos are especially helpful for visual topics like phylogenetics.