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One term, and every place the course uses it — the revision notes that teach it, the multiple choice questions that check it, and the detailed questions that examine it.

2 sub-topics use quadratic formula

1. AQA · Biology · 4.7 Ecology

   4.7.2Organisation of an ecosystem

   Used in 5 questions on this sub-topic.

   📖Study notes◉Multiple choice3✎Detailed questions2

2. AQA · Biology · 4.7 Ecology

   4.7.1Adaptations, interdependence and competition

   Used in 5 questions on this sub-topic.

   📖Study notes◉Multiple choice5