B: quantity of solute with a specific volome of solvent.
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Explanation:
Plant cells have a cell wall, as well as a cell membrane. In plants, the cell wall surrounds the cell membrane. This gives the plant cell its unique rectangular shape. Animal cells simply have a cell membrane, but no cell wall.
DNA testing which I think is the largest breakthrough.
bromine
Explanation:
halogens are a group of elemnts simlar to eachother
flourine, chlorine, and bromine
The answer is C because you don’t have to worry about the number in front of the decimal unless it is something greater than zero. A- Doesn’t have there sig figs. B- The zero after the 5 doesn’t change it. D- The three at the end doesn’t matter because it does not round it up.