1. In terms of major kinds of organisms, biology can be branched as follows:
- Botany- The study of plants.
- Zoology- The study of animals.
- Human biology- The study of man and his relationship with other living organisms.
- Bacteriology- The study of bacteria.
- Virology- The study of viruses.
- Mycology- The study of fungi.
- Entomology- The study of insects.
- Ichthyology- The study of fishes.
- Herpetology- The study of lizards, snakes, etc.
- Ornithology- The study of birds.
- Anatomy- The study of gross structure of an organism as seen in dissection.
- Morphology- The study of forms and structure of plants and animals.
- Histology- The study of minute structure of tiny bits of body.
- Cytology- The study of structure and function of animal and plant cells.
- Physiology- The study of functions and activities of organisms and their parts.
- Embryology- The study of formation and development of embryo of plants and animals.
- Taxonomy- The science of naming, grouping and classifying plants and animals.
- Ecology- The study of interaction among organism and their environment.
- Biogeography- The study of geographical distribution of plants and animals.
- Palaeontology- The study of prehistoric forms of life through fossils.
- Evolution- The study of origin and descent of organisms.
- Genetics- The study of transmission of characteristics from parents to offspring.
- Parasitology- The study of parasites.
- Pathology- The study of diseases of plants and animals.
- Immunology- The study of immune system.
- Eugenics- The study that aims to improve the quality of human population.
- Biochemistry- The study of chemical processes within the body.
