You are presented with the question "What are single-celled organisms that lack a nucleus?" and the following answer choices: 
- barnacles
 - bacteria
 - Most plants
 - ferns
 - orchids
 - cacti
 - PDAs
 - Leeuwenhoek

Now knowing that prokaryotes are single-celled organisms that lack a nucleus and prokaryotes All bacteria are prokaryotes, choose the best answer.


 

  bacteria       