Civil Engineering - UPSC Civil Service Exam Questions - Discussion

Discussion Forum : UPSC Civil Service Exam Questions - Section 9 (Q.No. 2)
Which one of the following is the correct statement ? A heterotroph is an organism that obtains
its cell carbon from an inorganic source.
its energy from the oxidation of simple inorganic compounds.
its cell carbon as well as its energy from organic matter.
its energy from a natural ecosystem.
Answer: Option
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