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the series of activities that takes place in a cell leading to its division and duplication (replication).
a very long time span in the Earth's history, covering tens or hundreds of millions of years....
biochemical process that traps radiant or light energy from the Sun and converts it into glucose...
double-membraned, pigmented, cytoplasmic organelles found in plant cells. The organelles have...
(also called lithospheric plates) massive, irregularly shaped slabs of solid rock.
small groups of cells found in the pancreas that secrete the hormones insulin and glucagon.