Cell, and gas are for sure made up of atoms so it’s either heat or a solid
Explanation:
Cell groups that have the same function.
The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms. When a neutral molecule has a positive area at one end and a negative area at the other, it is a polar molecule.
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The host is the host and the guard cell is the guard