Eubacteria rely on chemosynthesis rather than photosynthesis for energy. Four major are photo/chemo autptrophs/heterotrophs. Chemosynthesis is the synthesis from CO2 & water using energy that is gained from chemical oxidation of inorganic compounds. Ex of inorganic: ammonium nitrate.

Where do eubacteria get their nutrition?

A great many of the most familiar eubacteria are heterotrophs, meaning they must take food in from outside sources. Of the heterotrophs, the majority are saprophytes, which consume dead material, or parasites, which live on or within another organism at the host's expense.

How are eubacteria heterotrophs?

Explanation: Some eubacteria (true bacteria) contain organelles that allow them to gather sunlight. ... The rest of the eubacteria can not make their own food so they are heterotrophic.