Tom Whitburn 08/11/2026 Tom Whitburn 08/11/2026

OCR A Level Biology Ecosystems Written Exam Questions – 20 Question Marked Quiz

Twenty real OCR A Level Biology exam questions on ecosystems, from biomass transfer and the nitrogen cycle to succession and sampling, marked as you go with OCR mark schemes.

WEEKLY GROUP MASTERCLASSES - FOR AQA or OCR A 
A different topic each week, working with real exam questions
 Lessons tailored to each exam board’s requirements and quirks

AQA Y12 - 5.15pm Tues
AQA Y13 - 6.30pm Weds or Thurs
OCR A Y12 - 5.15pm Weds
OCR A Y13 - 5.15pm Thurs or 6.30pm Tues