Which has prokaryotic cells? 1. onion root 2. cow's liver 3. human blood 4. e. coli

E.coli consists of prokaryotic cells. A prokaryotic cell is a single-celled organism, generally a bacteria. E. coli is a bacteria that lives in the intestines of people and animals.

Explanation:

Prokaryotic cells are cells that don't have a real nucleus or most different cell organelles. Organisms that have being cells are living thing and known as prokaryotes. Microorganism and archaea are prokaryotes.

so whats the answer

not: both offer magnification to the atomic level.