Archaebacteria, also known as Archaea, can be both autotrophic and heterotrophic. This means they have the ability to produce their own food as well as rely on organic substances produced by other organisms.
Autotrophic Archaebacteria: Some Archaebacteria are autotrophic, meaning they can synthesize their own food from inorganic substances. They use processes like chemosynthesis, where they convert carbon dioxide and other inorganic compounds into organic matter using chemical energy, often derived from sulfur or ammonia.
Heterotrophic Archaebacteria: On the other hand, some Archaebacteria are heterotrophic, meaning they obtain their energy and nutrients by consuming organic matter from their environment. They break down complex organic compounds into simpler substances to derive energy.
In summary, Archaebacteria exhibit both autotrophic and heterotrophic modes of nutrition, depending on the species and their environmental conditions.