Question

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

autotroph
autotroph

primary consumer
primary consumer

heterotroph
heterotroph

tertiary consumer

Answer 1

The first trophic level in every ecosystem is the **autotroph**. Autotrophs, such as plants and algae, are organisms that produce their own food through photosynthesis or chemosynthesis, forming the base of the food chain.