Question

question 6 of 10
how are organisms in the domain eukarya different from those in the domain archaea?
a. eukaryotes have a nucleus.
b. eukaryotes have a cell wall.
c. eukaryotes have one cell.
d. eukaryotes have genetic material.

Explanation:

Eukaryotes (domain Eukarya) have membrane - bound organelles, including a nucleus. Archaea (domain Archaea) are prokaryotes and lack a nucleus. Both domains can have cell walls (but different composition), can be single - celled (though Eukarya also has multicellular organisms), and both have genetic material. So the key difference is the presence of a nucleus in Eukaryotes.

Answer:

A. Eukaryotes have a nucleus.