Essentials of Biology

Biology is a natural science that is concerned with the study of living organisms and the organization of life at chemical, molecular, physical and physiological levels. Cell theory, genetics, homeostasis, evolution and energy provide the theoretical foundations of biology. Biology is a vast discipline that differentiates into a number of significant sub-disciplines such as anatomy, biochemistry, biological engineering, biophysics, botany, zoology, developmental biology, ecology, evolutiona...