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Maths Genie is a free GCSE and A Level revision site. It has past papers, mark schemes and model answers to GCSE and A Level exam questions.
- IGCSE Revision
Free online Edexcel IGCSE video tutorials, notes, exam style...
- AQA Exam Papers
AQA Maths revision past exam papers for the new 1-9 GCSE...
- OCR Exam Papers
OCR Maths GCSE past papers and mark schemes
- GCSE Statistics
Topic Example(s) Exam Questions Solutions; Averages from...
- Free Maths Course
This learning journey sets out a path through all the maths...
- Old SPEC a Level
Maths Genie - A Level Maths revision page. Exam questions...
- 2022 Exams Advance Information
Advance Information for the Edexcel, AQA, OCR and MEI GCSE...
- IGCSE Revision
Master your GCSE Maths revision and feel more confident for your exams. Start by choosing your exam board.
Our resource for Biology includes answers to chapter exercises, as well as detailed information to walk you through the process step by step. With Expert Solutions for thousands of practice problems, you can take the guesswork out of studying and move forward with confidence.
Solutions. Free online GCSE video tutorials, notes, exam style questions, worksheets, answers for all topics in Foundation and Higher GCSE. The content is suitable for the Edexcel, OCR and AQA exam boards.
Revision for Edexcel Biology GCSE, including summary notes, exam questions by topic and videos for each module.
On this page you can find links to topic tests, past paper questions separated by topic and grade, for both Foundation and Higher tiers. For notes, worksheets and their solutions, visit the Maths Revision page.
The process of speciation: Variation exists within a population as a result of genetic mutations. Alleles which provide a survival advantage are selected for through natural selection. Populations of a species can become isolated, for example through physical barriers such as a rock fall preventing them from breeding together.
