It codes for all the processes within the cells and contains the DNA.
A galaxy where mainly stars and planets form around one or more spiral arms. (usually more?)
I am not sure but I believe it is B. Precipitation because the definition is: <span>the action or process of precipitating a substance from a solution ^-^ Hope this helps</span>
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Egestion is the discharge or expulsion of undigested material (food) from a cell while excretion is process of eliminating or expelling waste matter (that had already been digested)