zoology

chapter - 1 - reproduction in organisms

chapter - 2 - human reproduction

chapter - 3 - reproductive health

chapter - 4 - principles of inheritance and variation

chapter - 5 - molecular genetics

chapter - 6 - evolution

chapter - 7 - human health and diseases

chapter - 8 - microbes in human welfare

chapter - 9 - applications of biotechnology

chapter - 10 - organisms and populations

chapter - 11 - biodiversity and conservation

chapter - 12 - Environmental issues