* Atoms: Atoms are the smallest unit of an element that retains the chemical properties of that element. They are composed of subatomic particles (protons, neutrons, and electrons).
* Molecules: Molecules are formed when two or more atoms bond together. They are larger than individual atoms.
* Cells: Cells are the basic building blocks of life. They are much larger and more complex than atoms and molecules.
* Organelles: These are specialized structures within cells that perform specific functions.
* Tissues: Tissues are groups of similar cells that work together.
* Organs: Organs are made up of different tissues working together for a specific function.
* Organ systems: These are groups of organs that work together to perform major functions.
* Organisms: A complete living being composed of multiple organ systems.
In short: Subatomic particles are the fundamental building blocks of matter. Anything larger than a proton, neutron, or electron is made up of these particles and is not itself a subatomic particle.
