You are presented with the question "Which is not a cell?" and the following answer choices: 
- cigarettes
 - Chlorophyll
 - Leptospirosis
 - layers of fat
 - an object
 - anemia
 - all matter
 - influenza

Now knowing that viruses are not cells at all, so they are neither prokaryotes nor eukaryotes and influenza viruses are classified as orthomyxoviruses, choose the best answer.


 

        influenza 