What’s on the CLEP Biology exam?
Three areas, each about a third of the questions.
| Area | Share | What it includes |
|---|---|---|
| Molecular and cellular biology | 33% | Chemistry of living things, cells, enzymes, energy transformations, cell division, the chemical nature of the gene |
| Organismal biology | 34% | Structure and reproduction of plants and animals, heredity |
| Population biology | 33% | Ecology, evolution, behavior, social biology |
Is there a CLEP anatomy and physiology exam?
No. Anatomy and physiology isn’t one of the 34 CLEP subjects. The nearest thing is organismal biology, about a third of this exam, which covers how plants and animals are built and how they reproduce. Whether that counts toward an A&P requirement is your college’s call, so ask before you register.
Preparing for the Biology exam
Start with College Board’s free Biology sample questions. They show the style but don’t explain the answers. The official CLEP Biology Examination Guide is a $10 PDF with more practice questions. Our free practice test has 2 Biology questions with explained answers, one on cells and one on organisms.
If you only need a general education science credit, look at Natural Sciences too. It’s half biology and half physical science, also 6 semester hours at a 50.
Sources: College Board and 1 more. Checked October 2026.
Rules and fees can change, so check the official site before your test.
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