Prime Biology is a series of books carefully designed to introduce learners to the fundamental concepts and principles of biology, gradually creating awareness to man and his surroundings. That is, individuals capable of solving their day-to-day problems be it on health of even generating income for themselves. As concerns in-depth knowledge of the subject matter, the present National Syllabuses for first cycle has been used, but in some cases of an advancement in science or for a better equipment with the knowledge and skills to analyze and solve problems, material have been taken a little bit deeper. Therefore, numerous real-life examples and illustrations that will help the learners understand the concepts of Biology and develop a deep appreciation of our bodies and what happens in our everyday lives have been included. These should also generate a sense of curiosity and a search for more knowledge.