Pretty sure its called the 38th Parallel, or the Demilitarized Zone. :)
All mass isn't all together in one area but is actually more spread out.
In the middle of the cell is the nucleus.
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In my opinion I think that's it's number 4
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- Learning about, using, and understanding these pyramids is an ... sides, age on the y-axis, and the percentage of population on the x-axis. ... Rather, it displays percentages and shows what portion of people fall ... The more a graph looks like a pyramid, the faster that population is growing; old generations ...
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