Yes. All the answers are correct. Congratulations. A nice summary of the differences between the three domains of Bacteria, Archaea and Eukarya is given in Table 27.2 on page 512 of the textbook. Note similarities between the Eukarya and Archaea which lends support that eukaryotic cells are most closely related to those of the Archaea and not those of the Bacteria. In other words the Archaea are the common ancestors to the Bacteria and Eukarya or there is a common ancestory for all three groups with the Archaea and Eukarya breaking off from the Bacteria before Eukarya broke off from the Archaea (see the evolutionary orgins shown in Figure 26.3 on page 493 of the textbook).