Two ways that the members of the two domains of prokaryotes differ are in the what?

There are important differences in the structure and chemical makeup of their cells.

Some prokaryotes are unicellular, and others are multicellular. Although bacteria and archaea are similar in some ways, there are important differences in the structure and chemical makeup of their cells.

equal distribution i think.

the electromagnetic energy from the sun arrives in the form of visible and invisible light.