Branch of Biology is a broad term that encompasses many different scientific disciplines. Botany, with 6 letters, is the study of plants and their structure, growth, reproduction, and distribution. Ramus, with 5 letters, is a branch or stem of a plant or tree. Ecology, with 7 letters, is the study of the interactions between organisms and their environment. Anat, with 4 letters, is the study of the structure and function of the human body. GENETICS, with 8 letters, is the study of heredity and variation in living organisms. All of these disciplines are part of the larger field of Branch of Biology.