I am not sure of the answer but I think it is d. Pesticide Use.
It is ribosome just because the other ones are not proteins their cells ribosomes are produced from the endoplasmic reticulum
The original ecology of Acetobacter is Saprobiont
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<u>Explanation</u>:
Those organisms which can digest the food externally so as to captivate the product. These are also known as the decomposers. Perhaps not the detritivores that abstract the food internally. These are more exploited for industrial application, as known to be good source of extra cellular enzymes. denitrification is carried out by these bacteria. The complex molecules were broken down by the enzymes into smaller molecules that are also soluble in nature . Through diffusion these organism absorb the molecules.
Plants are NOT heterotrophs. Heterotrophs are organisms that cannot produce their own food; generally these are animals.