What is considered the basic unit of structure for all living things?

The basic unit of structure for all living things is the cell. Cells are often referred to as the building blocks of life because every living organism is made up of one or more cells. They perform essential functions necessary for life, including metabolism, growth, and response to stimuli. In multicellular organisms, cells can differentiate into a variety of types to form tissues, organs, and ultimately the organism itself. Understanding the role of cells is fundamental in fields such as biology and medicine, as they are the smallest unit capable of independent life and reproduction.