Getting and using energy Reproducing and Maintaining structure
<span>Rana sylvatica.
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-Payshence xoxo</span>
The answer is A
Explanation:
Two classes of genes, oncogenes and tumor suppressor genes, link cell cycle control to tumor formation and development. Oncogenes in their proto-oncogene state drive the cell cycle forward, allowing cells to proceed from one cell cycle stage to the next.
<span>observations are used in scientific study when conducting experiments to see</span>
