Organisms that manufacture their own food are called autotrophs. They do this through a process called photosynthesis, where they use sunlight, water, and carbon dioxide to produce glucose (a type of sugar) and oxygen.

Here are some examples of autotrophs:

* Plants: The most common and well-known autotrophs.

* Algae: These are single-celled or multicellular organisms that live in water.

* Cyanobacteria: These are bacteria that can perform photosynthesis.

Let me know if you'd like to learn more about photosynthesis!