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Answer:
A single mutation is unlikely to result in cancer. Cancer is usually caused by a series of mutations that accumulate throughout the course of a person's life. As a result, cancer is more common in older adults. They've seen more chances for mutations to accumulate.
Explanation:
Answer:
O2 contains only one type of atom.
Explanation:
The observers is based only on an experiment
What rocks? I would answer but I don’t understand the question