Plasma membrane, cytoplasm and ribosomes.
the answer is Ocell because a cell is the building block of all things
ATP provides the energy to join two glucose molecules together to create glycogen
Absolute time measurements can be used to calibrate the relative time scale, producing an integrated geologic or <em>"geochronologic"</em> time scale. The overall duration and relative length of these large geologic intervals is unlikely to change much, but the precise numbers may "wiggle" a bit as a result of new data.