1. Fields of Biology

2. According to Discipline Anatomy – structures Anatomy – structures Histology – tissues Histology – tissues Cytology – the cell Cytology – the cell Physiology – structure in relation to their function Physiology – structure in relation to their function Taxonomy – classification of organisms Taxonomy – classification of organisms Genetics – heredity and transmission of traits Genetics – heredity and transmission of traits Evolution – survival and adaptation through natural selection Evolution – survival and adaptation through natural selection Embryology – embryos and how they develop Embryology – embryos and how they develop Ecology – interrelationship of an organism with its environment Ecology – interrelationship of an organism with its environment

4. According to study of particular organisms Microbiology – microscopic organisms Microbiology – microscopic organisms Parasitology – organisms that live as parasites and cause serious damage to host Parasitology – organisms that live as parasites and cause serious damage to host Nematology – roundworms Nematology – roundworms Malacology – molluscs Malacology – molluscs Entomology – insects Entomology – insects Ichthyology – fishes Ichthyology – fishes Herpetology – reptiles and amphibians Herpetology – reptiles and amphibians Ornithology – birds Ornithology – birds Mammalogy – mammals Mammalogy – mammals Anthropology – humans Anthropology – humans Limnology – freshwater systems Limnology – freshwater systems

5. According to practical application Animal husbandry – animal domestication and propagation Animal husbandry – animal domestication and propagation Horticulture – study of growing trees, plants and vegetables Horticulture – study of growing trees, plants and vegetables Fisheries – management of fish populations to support food needs Fisheries – management of fish populations to support food needs Medicine – normal condition and diseases of humans and animals and their treatment Medicine – normal condition and diseases of humans and animals and their treatment Public health – diseases that concern majority of the population and may cause harm to a greater number of people Public health – diseases that concern majority of the population and may cause harm to a greater number of people