Prokaryotes are single-celled organisms that lack a nucleus, and prokaryotes are usually microscopic and bacteria is an example of a prokaryote. Given these facts, what are single celled organisms that do not have a nucleus among the following options:
- Most plants
 - nucleus
 - ferns
 - fossil fuels
 - bushes
 - Eukaryotes
 - leech
 - bacteria


 

        bacteria 