(D)an atom can join with other kinds of atoms.
Basically he explained what a molecule is.
When the fish is put into fresh water, suddenly the concentration around them is very low and the water potential is extremely high. Water will now move from the relatively high water potential in the water to the relatively low water potential in the cells, the cells start to burst and the fish dies.
My favorite color is orange and my favorite animal is a cheetah, my favorite subject is english . i’m a girl, puppies, and i like both :))
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