Question

1. what is the main difference between the two main groups of prokaryotes?

plasma membrane
cell wall structures
location of dna
existence of ribosomes

Explanation:

Prokaryotes are divided into bacteria and archaea. The main difference between them lies in cell - wall structures. Bacterial cell walls contain peptidoglycan, while archaeal cell walls lack peptidoglycan and have different chemical compositions (such as pseudopeptidoglycan in some archaea). Both have plasma membranes, DNA located in the nucleoid region (not in a membrane - bound nucleus), and ribosomes.

Answer:

cell wall structures