Introduction

Abstract

Each chapter in this book has been written to provide you with the following:

• 1 Clear detinitions of important terms used in biology.

• 2 A short summary of themain facts, terms and principIes associated with each major topic area. The topic areas are listed as sections, e.g. 6.2.

• 3 Answers to a selection of past examination questions from a number of examination boards and some prepared specially for this book. These questions have been selected to reflect the frequency with which topics tend to be tested in examinations and to illustrate certain topics which are known to cause candidates problems.