What is the basic unit of life in all living organisms?

The basic unit of life in all living organisms is the cell. This concept is a fundamental component of cell theory, which states that all living things are made up of one or more cells, and that the cell is the smallest unit of life capable of performing all life processes. Cells carry out essential functions such as metabolism, energy production, and reproduction, making them vital to the structure and function of living organisms.

Atoms, while they are the basic building blocks of matter, do not carry out life processes on their own. Tissues are groups of similar cells that work together to perform a specific function, and organs are structures made up of different types of tissues that work together to perform complex functions within an organism. Therefore, the cell serves as the fundamental unit from which all biological structures and functions arise.