A colleague proposes that the Archaea may be the oldest life form currently inhabiting Earth. Do you agree? Explain.

Bacteria evolved independently of archaea and eukaryotes, suggesting that ______________and_______________ are more closely related

Please place these in order :)

Name of the group of microorganisms that completely changed the evolution of life on Earth. - Why can we say that this group contributed to the delimitation of the limits of life? What is their ecological role? - How did these organisms contribute to the evolution of eukaryotic cells and metabolisms? - How did these organisms contribute to the establishment of life in extraterrestrial (out-of-water) environments?

Which sequence of events accurately describes the history of the planet (from oldest to youngest)?     Eukaryotes appear, Oxygen increases in the atmosphere, Prokaryotes appear,     Oxygen increases in the atmosphere, Eukaryotes appear, Prokaryotes appear      Prokaryotes appear, Oxygen increases in the atmosphere, Eukaryotes appear     Prokaryotes appear, Eukaryotes appear, Oxygen increases in the atmosphere

The two answer choices are:  1. Eukarya 2. Bacteria