The majority of bacteria are

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The majority of bacteria are chemoheterotrophs, which means they obtain energy and carbon from organic compounds. Photoautotrophs use sunlight as an energy source and carbon dioxide as a carbon source, while photoheterotrophs use sunlight as an energy source and organic compounds as a carbon source. Chemolithotrophs obtain energy from inorganic compounds and use carbon dioxide as a carbon source, which is not the primary source of nutrition for most bacteria. While some bacteria are disease-causing, this is not a defining characteristic of the majority of bacteria.

The Majority of Bacteria Are