Archaea vs Bacteria

Bacteria can thrive in extreme environmental conditions while archaea cannot

Archaea have membrane-bound organelles while bacteria do not

Archaea use sunlight as a source of energy while bacteria use inorganic compounds (correct)

Bacteria are eukaryotic while archaea are prokaryotic

They have a nucleus

They may consist of a third protective outer layer called a capsule (correct)

They have an outer cell membrane and an inner cell wall

They consist of plasmids which are linear pieces of extra-chromosomal DNA

Thermophiles

Oxygenic photosynthesizers

Anaerobic methane oxidizers (correct)

Halophiles