This book is a comprehensive aid for the Biology course of the 2nd Year of Lyceum. It is divided into chapters, each of which generally corresponds to theory that can be taught during a school hour. [...]

(from the author's preface)

Each chapter includes:
- Theory in the form of answered questions
- Answers to the "Let's think" of the school book
- Topics for answering in various forms (development, short answer, multiple choice, completion, true-false selection, and matching), aiming for better understanding and consolidation of the theory
- Short duration test
- Vocabulary of terms that also serves as a concise summary.

Additionally, at the end of each group of related chapters, there are:
- Review topics (knowledge recall, combined, and critical)
- Hourly tests
- Suggested answers to the "Let's Investigate" of the school book.

In the last section of the book, there are:
- Three-hour review tests
- Questions for theory enrichment
- Answers to the questions of the school book
- Problems relating the theory of the school book with the material of the nationwide exams, for the relevant preparation of students.