Biology is the scientific study of life and living organisms. It encompasses a wide range of fields that examine the structure, function, growth, evolution, distribution, and taxonomy of all forms of life, from microscopic bacteria to complex multicellular organisms such as plants and animals. Biology seeks to understand the mechanisms of life at various levels, including molecular, cellular, organismal, ecological, and evolutionary levels. Core concepts in biology include genetics, metabolism, homeostasis, evolution, and ecology. It is a diverse discipline that integrates knowledge from various sectors such as biochemistry, microbiology, zoology, botany, and ecology, and employs both theoretical and experimental approaches to explore the biological processes that govern living systems.