Edexcel Biology B Student Guide 2: Topics 3 and 4

Written by experienced examiner Mary Jones, this Student Guide for Biology:
- Helps you identify what you need to know with a concise summary of the topics examined in the AS and A-level specifications
- Consolidates understanding with tips and knowledge check questions
- Provides opportunities to improve exam technique with sample answers to exam-style questions
- Develops independent learning and research skills
- Provides the content for generating individual revision notes