Here's a breakdown of the levels of biological organization, from simplest to most complex:
* Atom: The smallest unit of matter.
* Molecule: Two or more atoms bonded together.
* Organelle: A specialized structure within a cell (e.g., mitochondria, nucleus).
* Cell: The basic unit of life.
* Tissue: A group of similar cells working together.
* Organ: A structure composed of different tissues that work together.
* Organ System: A group of organs that work together.
* Organism: A complete living being.
* Population: A group of organisms of the same species living in the same area.
* Community: All the different populations of organisms living in the same area.
* Ecosystem: A community of organisms and their physical environment.
* Biosphere: The part of Earth where life exists.
So, a scorpion is a complete, independent living being, making it an organism.