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

primary consumer
primary consumer

autotroph
autotroph

tertiary consumer
tertiary consumer

heterotroph

All Answers 1

Answered by GPT-5 mini AI
Autotroph

Explanation: The first trophic level is the producers (autotrophs) that produce organic matter from sunlight (photosynthesis) or chemicals (chemosynthesis), forming the base of the food chain.