What feature enables the archaea to survive in harsh environments?

A) their plasma membranes and cell walls
B) their metabolism
C) the ability to form multicellular organisms
D) their reproductive capabilities
E) their nucleus

The archaea have unique plasma membranes and cell walls that enable them to survive in extreme environments such as high temperature, high salt, and acidic conditions. These structures also protect them from extreme pressures, radiation, and other harsh conditions.