Final answer:
The book is centered on Biology, which is the science of studying living organisms, their life processes, and their interactions with the environment. It encompasses a broad range of topics from molecular biology to ecology, and it highlights the importance of biology in daily news and global challenges.
Step-by-step explanation:
Understanding the Subject of the Book
The subject of this book is Biology, which is the science that studies living organisms and their interactions with one another and their environment. Biology is a natural science that is concerned with the study of life, ranging from the microscopic structure of cells to the vast complexity of ecosystems. The field is essential for understanding various aspects of living organisms, including metabolism, reproduction, and the prevention of disease.
As one of the natural sciences, biology closely follows the laws of chemistry and physics. For instance, the principle that living organisms obey the laws of thermodynamics is integral to the study of biology. Moreover, the scope of biology impacts our everyday life as it touches upon news topics like E. coli outbreaks, Salmonella contamination, and the search for cures for diseases like AIDS, Alzheimer's disease, and cancer. Finally, the field extends to global challenges such as protecting our planet and addressing environmental issues like climate change.
Therefore, the correct answer is option 3) Biology, which is the subject matter presented by the introductory text of the book.