Fact 1: Prokaryotes are single-celled organisms that lack a nucleus.

Fact 2: Bacteria are said to be prokaryotes .

Given the two facts above, answer the question "What are single-celled organisms that lack a nucleus?" with the following options: 
- ferns
 - barnacles
 - Most plants
 - cacti
 - Leeuwenhoek
 - orchids
 - bacteria
 - PDAs


 

       bacteria  