What is the difference between archaebacteria and cyanobacteria?

Answer 1

Cyanobacteria gains energy through the sun, while archaebacteria gains energy through chemosynthesis (a process in which organisms gain energy through molecules such as sulfur)

Answer 2

Archaebacteria are ancient prokaryotic organisms that can survive in extreme environments, while cyanobacteria are photosynthetic prokaryotes that produce oxygen as a byproduct of photosynthesis. Archaebacteria are more closely related to eukaryotes, while cyanobacteria are responsible for the oxygenation of Earth's early atmosphere.