Cancer cells are collected and grown from a living organism. The cancer cells multiply at an inexorable rate. When the cells come into touch, they continue to multiply and develop. A layer of cancer cells forms on top of another. Unlike normal cell division, the number of mitotic divisions in cancer cells is unlimited.
Natural selection is when the organisms that have the better adaptation so they survive. In this case, the green was the better adaptation so they lived.
If they were to be no separation <span>of a pair of chromosomes during meiosis resulting in formation of a sperm or ovum with 24 chromosomes instead of 23.</span>
