DNA as genetic storage
Ester bonds in cell membranes
Presence of peptidoglycan in cell
Bacteria
![Escherichia coli](https://www.biocote.com/wp-content/uploads/2016/07/Five-Facts-about-E-coli_img.jpg)
Escherichia coli
Presence of membrane-bound nucleus
Eukarya
American black bear (Ursus americanus)
Presence of membrane-bound organelles
Eukarya
American black bear (Ursus americanus)
Presence of histones
Eukarya
American black bear (Ursus americanus)
Ether bonds in cell membranes
Archaea
![Methanobrevibacter smithii](https://images.fineartamerica.com/images-medium-large-5/intestine-archaea-methanobrevibacter-smithii-dennis-kunkel-microscopyscience-photo-library.jpg)
Methanobrevibacter smithii