Unit 4 – Energy, Environment, Microbiology and Immunity

Notes || Questions

This page is for International A-levels. If you started your course in September 2015 or later in England, you need the new Edexcel (A) Biology (2015) or Edexcel (B) Biology (2015) pages.

These topics are examined in the IAL Unit 4 paper for Edexcel Biology.

Notes