An organism that is hunted and eaten for food by another organism, which is known as a predator.

Prey

An organism that relies on complex organic carbon compounds for nutrients. The prefix hetero- ("other") refers to the organism relying on other organisms for carbon. Examples include humans and prokaryotes like E. coli.

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Organisms can be classified by the carbon sources they use for metabolism. Some such examples include:

- Autotrophs
- Heterotrophs

Organism Classification by Carbon Source

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https://openstax.org/details/books/microbiology/

Microbiology covers the scope and sequence requirements for a single-semester microbiology course for non-majors. The book presents the core concepts of microbiology with a focus on applications for careers in allied health. The pedagogical features of the text make the material interesting and accessible while maintaining the career-application focus and scientific rigor inherent in the subject matter. Microbiology’s art program enhances students’ understanding of concepts through clear and effective illustrations, diagrams, and photographs.

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An organism that uses inorganic carbon dioxide to make organic carbon compounds. The prefix auto- ("self") refers to the organism being its own source of carbon. Examples include plants an cyanobacteria.

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