As mentioned in theory, the fermentation readings with tsia and kia must take place between 18 and 24 hours after inoculation. why is this true? is timing as critical with h2s readings?

answer; i believe the correct answer is ( proteins );

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.

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