Question

cancer starts as one cell that replicates uncontrollably. eventually those cancer cells may become a tumor. which statement best supports these facts? cells are the basic unit of life. cells come from pre - existing cells. cells make up all living organisms. cells differentiate into specific types of cells.

Explanation:

The fact that cancer starts as one cell and replicates means new cells are formed from the pre - existing cancer cell. The statement "Cells come from pre - existing cells" best supports this as it is related to cell replication. The other statements about cells being the basic unit of life, making up all living organisms, and differentiating into specific types are not as directly relevant to the uncontrolled replication of a single cancer cell to form a tumor.

Answer:

Cells come from pre - existing cells.