A) autotrophs
B) heterdtrophs
C) organotrophs
D) autoheterotrophs
Correct Answer: B
Solution :
Heterotrophs depend upon the green plants for their food requirements. Hence, they are called, consumers. On the basis of their size, they can be divided into two categories-macroconsumers or phagotrophs and micro-consumers or saprotrophs. Decomposers are the heterotrophs which act upon and decompose the dead organisms. They include bacteria, fungi etc. Autotrophs are the green plants and some bacteria which synthesize organic matter through photosynthesis. They are called, producers. Organotrophs are the type of bacteria, where the source of electron is an organic compound.
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