In an ecosystem, organisms that can prepare their own food using sunlight are known as _______________.
Producers
Organisms that make their own food from simple inorganic substances are called autotrophs. Green plants, algae and some bacteria use sunlight, carbon dioxide and water to make food by photosynthesis.
Because they make the food on which all other organisms of the ecosystem depend, they form the first trophic level and are called producers.
Herbivores and carnivores are consumers: they cannot make their own food and must eat plants or other animals. Decomposers, such as bacteria and fungi, obtain food by breaking down dead organic matter, not by using sunlight.
Hence, Producers.
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Primary consumers are
