the theory that all living things are made up of cells, that cells are the basic units of organisms, and that cells come only from existing cells.

a cell that contains a nucleus and membrane bound organelles

process by which a cell becomes specialized in order to perform a specific function

a unicellular organisms that lacks a nucleus and membrane bound organelles.

membrane-bound organelle that is present in all eukaryotic cells and is the control center of the cell.

the type of eukaryotic cell that lacks a cell wall

the type of eukaryotic cell that has a cell wall and chloroplasts

an instrument that can be used to observe small objects, even cells

specialized structures that perform various jobs inside cells