daveankatie1671
18.12.2020 •
Biology
Which of the following examples shows that a chemical reaction has occurred?
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Ответ:
C
Explanation:
When rust forms on something, a chemical change is occurring.
Ответ:
Cells become cancer cells largely because of mutations in their genes. Often many mutations are needed before a cell becomes a cancer cell. The mutations may affect different genes that control cell growth and division. Some of these genes are called tumor suppressor genes.
Explanation: