Fact 1: Cells are the basic units of the structure and function of living things.

Fact 2: Organic materials, or living things, are biodegradable.

Given the two facts above, answer the question "What are the basic units of the structure and are biodegradable?" with the following options: 
- leaves
 - peat
 - paper
 - solutes
 - cells
 - fungi
 - trees
 - sugar


 

     cells    