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AP Biology

Notes, practice questions and a test for every unit. Open a unit to see its topics.

Practice examFlashcardsStudy plan
Unit 1Chemistry of Life7 topics · 29 questions
Unit notes and practiceUnit test
Unit 2Cell Structure and Function10 topics · 38 questions
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Unit 3Cellular Energetics5 topics · 23 questions
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Unit 4Cell Communication and Cell Cycle6 topics · 26 questions
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Unit 5Heredity5 topics · 23 questions
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Unit 6Gene Expression and Regulation8 topics · 32 questions
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Unit 7Natural Selection12 topics · 44 questions
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Unit 8Ecology7 topics · 29 questions
Unit notes and practiceUnit test