Every cell in the body goes through a life cycle. Cells grow and divide to replace cells that are lost because of normal wear and tear or injury. Different cells grow and die at different rates. Some cells, such as epithelial<span>epithelialA thin layer of epithelial cells that makes up the outer surfaces of the body (the skin) and lines hollow organs, glands and all passages of the respiratory, digestive, reproductive and urinary systems.</span> cells, reproduce quickly. Other cells, like nerve cells, grow slowly. Both normal cells and cancer cells go through a sequence of steps, or phases, when they form new cells. This is called the cell cycle.
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G. cause if you just do a ratio everything adds up.
<span>All of the following patterns were witnessed by Darwin except that species vary within very short spans of time. Charles Darwin put forth a coherent theory of evolution and amassed a great body of evidence in support of this theory. By the 19th Century, a number of natural historians were beginning to think of evolutionary change as an explanation for patterns observed in nature.</span>
A mutation in DNA affects the entire protiens synthesis process by producing the incorrect amino acids in the wrong places, causing issues with the ability of the organism to survive depending on what the protein is in charge of.
