Question

Which is a characteristic of something in the domain archaea?

A.) Membrane-enclosed organelles
B.)No cell nucleus
C.) Cannot live in extrememe enviorments
D.)Multicellular

Answer 1

Answer: The correct answer is B) No cell nucleus.

Archaea is a domain that comprises of single celled microorganisms, which are prokaryotes. These organisms can survive in extremely harsh conditions like hot springs and salt water.

Example- Methanogens.

Archea was first classified as a separate group of prokaryotes under the three domain classification system of Carl Woese in 1977 that included Archaea, Bacteria, and Eukarya.

Since they are a group of prokaryotic organisms, therefore, they are devoid of nucleus and membrane bound cell organelles.

Thus, option B) is the right answer.

Answer 2

B) No cell nucleus is a characteristic of something in the domain archaea.