Genetic mutation is what leads to the mechanism of natural selection, and thus contributes directly to evolution, a necessary and useful process. The crossing over and randomization at fertilization also increases variation. Without the variation that results from mutations, natural selection would not occur, thus proving that genetic mutations are beneficial and crucial for life. However, cancer is a disease caused by mutation. Does this mean that cancer is inescapable for all humans if we simply live long enough?

Explanation:

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the right answer is a. skin cells forming from sunlight.

the liver is an organ endowed with a fantastic ability to regenerate

. thus, if a hepatectomy (ablation) of 70% of the hepatic mass is performed in the rat, there is complete recovery in 7 to 10 days.

prokaryotes are beings that have existed since the existence of life on earth, and do not come from another realm.

ribosomes are organelles that exist naturally in eukaryotes, either in free form or attached to the endoplasmic reticulum.

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