It specifies what exactly the variations are of whatever population is being examined.
<span>S phase is the duplication of the cells genetic information, if this did not occur, when the cell divides into two cells, there would be no copy of this genetic information given to 1 out of the 2 cells.
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The answer is : crossing over can increase genetic variations during meiosis
A chemical reaction is a process in which one or more substances are changed into new substances.
An example of a chemical reaction is when metal rusts.
I believe it is the second option
Eukaryota and most likely produces milk to feed its young