1. Anatomy: the study of the structure of organisms and their parts 2. Physiology: the study of the functions and processes of living organisms 3. Genetics: the study of genes, heredity, and variation in living organisms 4. Ecology: the study of the interactions between organisms and their environment 5. Evolutionary biology: the study of the processes that have led to the diversity of life on Earth 6. Microbiology: the study of microorganisms, including bacteria, viruses, and fungi 7. Botany: the study of plants, including their structure, growth, and reproduction 8. Zoology: the study of animals, including their behavior, physiology, and evolution 9. Molecular biology: the study of the structure and function of biological molecules, such as DNA and proteins 10. Immunology: the study of the immune system and its role in protecting the body from disease.