Some organisms, such as plants, algae, and cyanobacteria, produce their own food by absorbing the sun's radiation. These organisms are referred to as .

Autotrophs or producers

Explanation:

Some organisms like plants, algae, and cyanobacteria use sunlight energy and convert CO2 and H2O into organic food so these organisms are called autotrophs or photoautotrophs or producers as they make their own food.

They contain a pigment called chlorophyll which helps them to capture sunlight and use its energy for synthesizing food. Consumers eat producers to get energy. The organic compound which is produced by this process is glucose. This glucose oxidized to form ATP which is the energy currency of the cell.

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then that particular organisms become extinct.