Answer:
Oxygen for the first box, and lactic acid for the second
Physical biological and chemical
The answer is <span>The </span>fluid<span> mosaic model.</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.
