You are presented with the question "What are the basic units of the structure and are biodegradable?" and the following answer choices: 
- leaves
 - peat
 - paper
 - solutes
 - cells
 - fungi
 - trees
 - sugar

Now knowing that cells are the basic units of the structure and function of living things and organic materials, or living things, are biodegradable, choose the best answer.


 

     cells    