Answer: endoplasmic reticulum
Explanation:
Prokaryotes ( meaning pro: before and Karyon: for kernel/nut) describes organisms which don’t have a cell nucleus or other organelles surrounded by membranes
Eukaryotes (eu meaning true), are organisms with a cell nucleus and several other organelles surrounded by membranes
Example prokaryotes do not contain: nuclei , Golgi apparatus, chloroplasts, mitochondria, and endoplasmic reticulum
Both may contain a cell wall, flagella, ribosomes, DNA and plasma membranes
