IB Biology flashcards
3 decks · 216 cards · built into Willys · free samples below
Written against: IB Diploma Programme IB Biology subject guide for first assessment 2025 (themes A–D); SL and HL in one deck, HL-only cards under subtopic tags starting HL. Updated 2026-10-10.
What's in it
Every deck follows the course outline, with tags you can study or suspend topic by topic. Open a deck to study its free sample right here.
Learn · 2 decks · 156 cards
Concepts, mechanisms and the questions a course or exam asks about them.
Practice · 1 deck · 60 questions
Multiple-choice practice questions, one best answer each, with the reasoning.
Study guide
Topics covered
The decks follow the order of the course outline. Numbers are cards per topic.
- Unity and Diversity 52
- HL Molecules 3
- Molecules 7
- Cells 5
- HL Cells 5
- HL Organisms 4
- Organisms 4
- Ecosystems 7
- HL Ecosystems 2
- HL 3
- Form and Function 54
- HL Molecules 3
- Molecules 9
- Cells 6
- HL Cells 4
- HL Organisms 4
- Organisms 8
- Ecosystems 7
- HL 3
- Interaction and Interdependence 51
- HL Molecules 5
- Molecules 6
- Cells 2
- HL Cells 6
- Organisms 8
- Ecosystems 9
- HL 4
- Continuity and Change 59
- HL Molecules 4
- Molecules 7
- Cells 6
- HL Cells 3
- HL Organisms 4
- Organisms 8
- Ecosystems 8
- HL Ecosystems 2
- HL 7
A study plan
- 8 new cards a day covers everything in a month, leaving the last weeks for review.
- 5 new cards a day covers everything in two months, leaving the last weeks for review.
Willys schedules reviews for you (FSRS spaced repetition), so the daily number above is only for new cards; reviews of what you have learned come back on their own. Study a topic's cards right after you meet it in class, suspend topics you have not reached yet, and use the app's quiz mode in the final two weeks.
How to get these decks
- Install Willys on your iPhone, iPad or Mac — App Store. 14-day free trial, then $14.99 a year.
- In Willys, tap Exam Library at the top of your Decks (or Browse Exam Library… under the + button), find the exam on its shelf or by search, tick it and tap Add.
- Study. The exam comes in as its own collapsible folder, every card scheduled by FSRS spaced repetition. Nothing you already have is changed.
Every deck is built into Willys
All 3 IB Biology decks (216 cards), with FSRS spaced repetition, quizzes and mock tests, on iPhone, iPad and Mac. 14-day free trial, then $14.99 a year.
In Willys, tap Exam Library at the top of your Decks (or Browse Exam Library… under the + button), find the exam on its shelf or by search, tick it and tap Add.
About these cards
Review status: Second-reader reviewed, with corrections applied.
Checked against:
- IB Diploma Programme subject guide (topic outline only; no text copied)
- Tag order follows the IB Diploma Programme Biology guide for first assessment 2025 (themes A–D across four levels of organisation).
- OpenStax Biology 2e, consulted as a reference; no text copied.
- Also checked against the NOAA Global Monitoring Laboratory's monthly Mauna Loa CO₂ record, the US National Park Service's Yellowstone wolf ecology page and Open RN Nursing Fundamentals (CC BY 4.0) (reference only; no text copied).
- IB Diploma Programme subject guide (topic outline only; no text copied).
These are independent study notes written for Willys. They are not official exam material, may contain mistakes, and are no substitute for your course, your teacher or the exam owner's own publications. Found an error? Tell us — corrections ship as a new version of the deck.
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