Which sedimentary rock forms through the accumulation of the remains of living organisms?

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

The rapid decomposition of organic matter produces evidence which supports: the slow accumulation of coal deposits long ages of the earth rapid burial of vast amounts of vegetation biblical account of noah's flood

What would happen if the tubing with the yellow band was placed in a beaker of distilled water?