1. Single-celled organism
2. An organism that only consists of one cell.

   [image]

Multicellular

1. An organism that consists of more than one cell
   
   

   [image]

1. An instrument used to see objects that are too small for the naked eye.
   

   [image]

    

1. A biological membrane that separates the interior of all cells from the outside environment.
   

   [image]

1. A gel-like substance residing between the cell membrane holding together all of the cells internal substructures.
   

   [image]

1. A membrane enclosed organelle found is eukaryotic cells.
   

   [image]

1. Specialized subunit within a cell that has a specific function, also it is usually separately enclosed within its own lipid bilayer.
   

   [image]

1. The tough and flexible ut sometimes fairly rigid layer that surrounds some types of cells.
   

   [image]