Biology is a natural science concerned with the study of life and living organisms, including their structure, function, growth, evolution, distribution, identification and taxonomy. Modern biology is a vast and eclectic field, composed of many branches and sub disciplines.

This brief book can be used by teachers and students in the biology field. Students of higher classes can also use this book. This book can also be used as references.

Biology has always been an entertaining subject especially with the pictures in it. The figures and structures are very important in biology; they can demonstrate and summarize a whole chapter.