Energy is a fundamental component in an ecosystem and is contributed by the primary producers. how can light energy, in turn, support the consumers of an ecosystem? a. light energy is converted to chemical energy by primary producers and primary consumers. consumers belonging to higher trophic levels feed on them to gain energy. b. primary producers can only obtain energy from sunlight by photosynthesis and gain energy by feeding on them or other consumers which have consumed these producers. c. primary producers convert light energy to chemical energy using photosynthesis and consumers gain energy by feeding on them or on other consumers that have consumed these producers. d. primary producers convert light energy through chemosynthesis and consumers gain energy by feeding on them or other consumers which have consumed these producers.