Answer:
A new study provides a key insight into a milestone event in the early evolution of life on Earth -- the origin of the cell nucleus and complex cells. Scientists peered deep inside current living cells, known as Archaea - the organisms that are believed to most closely resemble the ancient intermediates between bacteria and the more complex cells that we now know as eukaryotic cells.
Explanation:
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The x because it is a male chromosome and have one more than a girl <span />
It can change but inter fearing with each other
Answer:
They signify the multiples of ten for each unit
