How many years are needed to bring an original sample of C-14 to 6.25%

Which of the following matches the organisms described with the correct domain? a. bacteria--unicellular, eukaryotic organisms with cell walls that do not contain peptidoglycanb. archaea--multicellular, eukaryotic organisms that do not have cell wallsc. eukarya--single-celled and multicellular organisms, with a defined nucleus and a variety of nutritional sourcesd. bacteria--unicellular, eukaryotic organisms that always lack cell walls

What is the importantence of the carbon and nitretan cycles in the environment

Mrna decodes information from the original dna master plan to build proteins in the during the process of ribosomes.