Question

question 10 of 10
why are archaea in a different domain from bacteria?
a. they are able to perform endosymbiosis, but bacteria are not.
b. they are multicellular, but bacteria are unicellular.
c. they have no similar characteristics.
d. they are thought to have separate paths of evolutionary development.

Explanation:

Archaea and bacteria are both prokaryotes (unicellular, lack membrane - bound organelles). However, based on genetic and biochemical differences (such as differences in cell wall composition, membrane lipids, and RNA polymerase structure), archaea are considered to have a separate evolutionary lineage from bacteria. Endosymbiosis is more relevant to the origin of eukaryotic organelles (like mitochondria and chloroplasts). Both archaea and bacteria are unicellular. And they do share some characteristics (e.g., being prokaryotic), but their evolutionary paths are distinct enough to place them in different domains.

Answer:

D. They are thought to have separate paths of evolutionary development.