Identical exactly the same All cells come from pre-existing cells Cells are the basic unit of life Plant cell Contains a cell wall, chloroplasts, and a very large vacuole Animal cell Contains no cell wall and many small vacuoles Prokaryotic Has no nucleus to hold DNA Eukaryotic Has a nucleus that holds DNA Multi-cellular Made of many cells Uni-cellular Made from only one cell. Organism A fully independent Living thing Organization How something is arranged Function what it does or how it works Structure How its made or how it looks Spontaneous Generation A living thing coming from a non-living thing Reproduction The production of offspring Composed What an item or object is made up of Pre-existing Came from an earlier time