The Biotic Components of Ecosystems >Producers (autotrophs) Abiotic chemicals (carbon dioxide. Heat Heat Solar oxygen,nitrogen nergy minerals) Consumers He (heterotrophs) Decomposers Producers (bactera,fungus) (plants) Decomposers Consumer (herbivores. Heat carnivores) He at 2002 Brooka/Cole-Thomson Leaming F9.4416p.7⑤The Biotic Components of Ecosystems The Biotic Components of Ecosystems ¾Producers (autotrophs) ¾Producers (autotrophs) ¾ Consumers (heterotrophs) ¾ Consumers (heterotrophs) ¾ Decomposers Decomposers Fig. 4-16 p. 75 Fig. 4-16 p. 75