6.5/6.3 Ecosystems resource bundle for the new OCR A-level biology A specification

UPDATE: End of unit test with markscheme added + new mixed revision questions added.

Contains detailed powerpoint presentations with starters and exam questions, including excellent exam question packs for all the lessons on:

1. Ecosystems
2. Food chains and pyramid of number and biomass, and manipulating conditions to improve net primary productivity and secondary productivity
3. Recycling in ecosystems - including the Nitrogen and carbon cycle
4. Studying ecosystems- using quadrats, types of sampling, using Transects ( line and belt- including continuous and interrupted)

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