Organisms that live in virtually every environment on Earth belong to the Domain Archaea.

a. True

b. False

False

Explanation:

The organisms in Domains Bacteria and Archaea are able to thrive in every possible environment present on the earth. They are found in oceans, air, fresh water, soil, inside the body of living beings, hot water springs and even in hydrothermal vents.

Some of these organisms can thrive in the absence of oxygen as they perform anaerobic metabolism. For example, the enteric bacteria are anaerobic as oxygen is not available to them.

The evolution of unique ability to withstand the extremes of the conditions allows the archaeans to thrive under extreme climatic conditions. It includes halophiles, thermophiles, etc.