Which of the following is the first trophic level in every ecosystem?(1 point)

Responses

primary consumer
primary consumer

autotroph
autotroph

heterotroph
heterotroph

tertiary consumer

1 answer

The first trophic level in every ecosystem is the autotroph. Autotrophs, such as plants and algae, produce their own food through photosynthesis or chemosynthesis and serve as the primary source of energy for all other organisms in the ecosystem.