The aim of this book is to help you understand and retain knowledge that might otherwise be difficult and tiring.
This goal was significantly aided by the illustrator Philippos Papanikolaou with his vivid and entertaining sketches.
Each section of the book contains:
- basic theory questions
- answers to the questions-problems-activities of the school book
- answers to the small research and assignments of the school book
- answers to the "let's think" section of the school book
- answers to the activity questions included in the workbook
- answers to the worksheets included in the laboratory guide,
- evaluation criteria at the end of each chapter and a comprehensive evaluation criterion at the end of each section, to check the knowledge you have acquired.
At the end of the book, all the answers to the evaluation criteria are provided. I would like to thank my fellow biologists, Dimos Avgerinos, Ilias Dimitriadis, Giorgos Kapolas, and Katerina Bosinaki for their insightful comments.

Penelope L. Sotiriou