1.) Mitosis is the splitting of a parent cell into two daughter cells. When mitosis occurs the DNA is copied, making double the amount of chromosomes in the parents cell which will late be divided into two separate cells when the cell pinches in the middle.
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Explained
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Prokaryotic cells are generally smaller in size than the eukaryotic cells and thus the DNA in the prokaryotic cells are much smaller than the DNA in the eukaryotic cells therefore, the later organisms have many origins where replication occurs simultaneously. Moreover, Prokaryotic cells lack neucleus and whereas eukaryotic cells have neucleus in them which is bounded by the membrane.
As far as is known, at its birth 4.6 billion years ago, our planet was an inhospitable pile of rocks accreted from cosmic debris, hot inside and cooling on the outside. Water and an atmosphere were present and crustal rocks began to form at once (the oldest being 4.3 billion years old).
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mabye take a batter picture .. do you need help on both or one
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