Exam-style practice

Community level systems MCQ drill

Practise quick multiple-choice drill questions for Community level systems. Aligned to OCR Gcse Biology A Gateway.

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Question 101 of 101

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A scientist observes a forest ecosystem over several years. They notice that a significant increase in the population of deer (herbivores) leads to a decrease in the abundance of certain plant species. This change then causes a reduction in the population of foxes, which prey on smaller herbivores that also rely on those plants. Which of the following best describes the initial factor affecting the community in this scenario?

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Community level systems mcq | OCR GCSE Biology A Gateway | ExamCompanion