This document provides the mark scheme for the October/November 2013 series of the Cambridge International Examinations International General Certificate of Secondary Education Biology exam. It lists the correct answers to the 40 multiple choice questions on the exam paper, identified by question number and letter key. The document also notes that Cambridge will not enter into discussions about the mark schemes and that it is publishing mark schemes for most IGCSE, GCE Advanced Level and Advanced Subsidiary Level components for the October/November 2013 series.