In order to study the formation of cancer cells, you should study the life cycle of normal cells as cancer cells are abnormal cells.
Actually, Normal cells grow, divides and died after an interval of time. And when this process is break down, cancer cells begin to form. They are usually old cells which don't die after their life cycle.
Hope this helps!
Sorry I can't it wouldn't let me see the picture and sorry for wasting your points I would answer it if my s-t-u-p-i-d computer would let me see it.
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I'd say pollution and waste being dispersed the wrong way
One reason for the early success of reptiles was that a. reptiles could reproduce away from water.