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Regular · Science

Biology practice questions

Keen has 318 Biology practice questions and 159 flashcards, tagged to 13 of the course's 13 units. Practice is adaptive: the units you keep getting wrong come back more often, reworded, until you get them right consistently.

Start practising free 15 Learn and 10 Review questions a day, free, no card required.

Questions by unit

Counts are live from the question bank. A unit showing zero has not been authored yet, and is listed rather than hidden so you know before you start.

UnitQuestionsFlashcards
Scientific Method and Characteristics of Life 20 10
Biochemistry and Macromolecules 24 12
Cell Structure and Function 24 12
Cell Transport and Homeostasis 22 11
Photosynthesis and Cellular Respiration 24 12
Cell Division: Mitosis and Meiosis 28 14
Mendelian Genetics 28 14
DNA, RNA, and Protein Synthesis 28 14
Biotechnology 20 10
Evolution and Natural Selection 24 12
Classification and Taxonomy 20 10
Ecology and Ecosystems 32 16
Human Body Systems 24 12
Total 318 159

How studying Biology on Keen works

  1. Add the course. Pick Biology from the catalogue and Keen loads its real unit list.
  2. Answer questions. Every answer updates a per-unit estimate of how well you know that unit.
  3. Miss something. Wrong answers are scheduled to return later, reworded, so you cannot pass on recognition alone.
  4. Watch the weak list shrink. Progress shows your weakest units first, which is the list worth studying.

Frequently asked questions

How many Biology practice questions does Keen have?

Keen has 318 Biology questions and 159 flashcards, spread across 13 of the 13 units in the course. Every question is tagged to the unit it belongs to, so practice can be aimed at one unit at a time.

Can I study Biology by unit?

Yes. Biology is broken into its real units, starting with Scientific Method and Characteristics of Life, Biochemistry and Macromolecules, Cell Structure and Function. You can practise a single unit, or let Keen pick for you, in which case it weights questions towards the units you have been getting wrong.

Is Biology practice free on Keen?

The free plan covers 15 Learn and 10 Review questions a day in one subject, which is enough to work through Biology slowly. Premium removes the daily cap for $4.99 a month or $29.99 a year and unlocks every other course at the same time.

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