Final answer:
The cell is the basic unit of life, serving as the smallest unit that can function independently in an organism, and it's fundamental in the biological organization of all living beings.
Step-by-step explanation:
The cell is the basic unit of life. It is the smallest independently functioning biological unit of an organism. Whether an organism is made of a single cell, like bacteria, or many cells, like humans, the cell is the elementary building block of all live organisms. In larger organisms, cells can be organized into tissues, which in turn make up organs. Organelles, such as the nucleus and mitochondria, are specialized structures within cells that perform distinct functions.
An organism can range from a single cell to a complex structure composed of millions of cells. A cell is the smallest unit of a living thing. A living thing, whether made of one cell (like bacteria) or many cells (like a human), is called an organism. Thus, cells are the basic building blocks of all organisms.