• Oct 17, 2025 gce grade boundaries edexcel 6bio1 june 2013 rs effectively differentiate between varying levels of student achievement. Context of Edexcel 6BIO1 June 2013 The 6BIO1 paper, titled “Principles of Biology,” is a core component of the GCE A-level Biology qualification under Edexcel’s specifications. The June 2013 sitting was notable BY Lou Nader