The common term for the study of living organisms is biology. Biology encompasses a wide range of sub-disciplines, including ecology, genetics, microbiology, and zoology, among others. It is the scientific field dedicated to understanding the characteristics, behaviors, functions, interactions, and evolution of living entities, from single-celled organisms to complex multicellular organisms like plants and animals. Biology plays a critical role in many aspects of life, including medicine, environmental science, and conservation, as it provides insights into how living systems operate, adapt, and interact with their environments, helping us address pressing global challenges.