A) autotroph
B) saprotroph
C) heterotroph
D) autoheterotroph
Correct Answer: C
Solution :
Decomposers are saprophytic animals or plants, which decompose the organic material by secreting extracellular digestive enzymes. e.g., Saprophytic bacteria like Rhizopus and saprophytic fungi like Pseudomonas. Autotrophs are green plants and blue-green algae which perform photosynthesis and certain other organism which synthesizes their food (without sun light) like bacteria. Heterotrophs are organism which cannot synthesizes their food. They obtain food from other living organism known as parasite or non-living organic matter known as saprophytic. Autoheterotrophs are organism which obtain food from outside and also synthesizes their food inside own body e. g., Euglena.
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