Questions: Which of the three domains includes organisms that would be most likely to survive the environmental conditions that existed on Earth nearly 4 billion years ago? Multiple Choice Eukarya Bacteria Archoea

The answer is the third one (C): Archaea.

Explanation for each option:

• Eukarya: This domain includes organisms with complex cells that have a nucleus, such as plants, animals, and fungi. Eukaryotic organisms are generally more adapted to stable and less extreme environments compared to the early Earth conditions. Therefore, they are less likely to have survived the harsh conditions nearly 4 billion years ago.

• Bacteria: This domain includes prokaryotic organisms that are more adaptable to various environments than eukaryotes. Some bacteria can survive extreme conditions, but they are generally not as well-suited to the extreme conditions of early Earth as Archaea.

• Archaea: This domain includes prokaryotic organisms that are known for their ability to survive in extreme environments, such as high temperatures, high salinity, and acidic conditions. These extremophiles are considered to be some of the earliest forms of life on Earth and are most likely to have survived the harsh conditions nearly 4 billion years ago.

In summary, Archaea are the most likely to have survived the environmental conditions that existed on Earth nearly 4 billion years ago due to their ability to thrive in extreme environments.