In the ecosystem, primary producers are also known as
Hint: Primary producers considered as the foundation of the ecosystem and they have the ability to convert the light energy into organic compounds which are used as food by all organisms on this system, green plants and so many primitive organisms that are capable of producing this food come under the primary producers.
Complete answer: Primary producers are also called autotrophs, which obtain energy from the natural atmosphere like sunlight, water, and obtain some sources from nonliving things and produce food by the process called photosynthesis. There are different types of primary producers located on the earth at different stages. These primary producers which include plants and algae use sunlight and water to produce energy. Primary producers include some bacteria and phytoplankton. Importance of primary producers Without primary producers, no organism has the capability to produce energy on its own. No life might not be able to sustain on earth without primary producers because all the energy-consuming the remaining organisms on earth are produced by the autotrophs and they also release oxygen to the atmosphere during this process, which is utilized by remaining organisms on the planet. And it was thought that the first primary producers on earth might be the aquatic organism on the ocean floor. So the organisms on land and in aquatic life which are responsible for energy production are termed as autotrophs or photoautotrophs or primary producers and they are in the first trophic level of the food pyramid.
Note: When it comes to aquatic life, algae contribute to the food web and balance the ecosystem, especially the organisms Living on the streams of rivers and oceans. All algae and phytoplanktons and all aquatic and land plants have come under autotrophs.