The Appalachian Mountains in the eastern United States appear to be a part of the same mountain range that continues in . A) Canada and Greenland B) Africa and India Great C) Britain and Scandinavia D) South America and Cuba

Which of the following matches the organisms described with the correct domain? a. archaea--multicellular, eukaryotic organisms that do not have cell walls b. eukarya--single-celled and multicellular organisms, with a defined nucleus and a variety of nutritional sources c. bacteria--unicellular, eukaryotic organisms with cell walls that do not contain peptidoglycan d. bacteria--unicellular, eukaryotic organisms that always lack cell walls