Which type of organism is the first organism in an energy pyramid or food chain

Answer 1

The first organism in an energy pyramid or food chain is typically a primary producer, also known as an autotroph. These organisms are capable of synthesizing their own food through photosynthesis or chemosynthesis. They convert energy from the sun or inorganic molecules into organic compounds that can be used by other organisms. Examples of primary producers include plants, algae, and certain bacteria.