This Course Companion follows an approach that supports the new 2007 syllabus while including the wider aims of the IBO through connections to TOK, international-mindedness and the IB learner profile. It has been written by a former chief examiner for IB Diploma Programme Biology and has beenextensively reviewed by teachers, consultants and the IBO. With features and activities that encourage active learning and critical thinking, students will find this book stimulating and engaging.