9. A primary difference between a normal cell and a cancerous cell is A. the cell must be directly exposed to a carcinogen. B. the cell must lose normal cell division controls C. the cell must go through mitosis at least 25 times. D. the cell must be located in either connective tissue or muscle. E. More than one of the above.

Cancer is as a result of the body system cell division going out of control. Cell division is important for growth and repair of body parts but when there is a problem in which the cells divide more rapidly and without control then it could be very dangerous and fatal.

Exposure to Carcinogens may increase the risk of cancer. It isn’t a necessity for cancer to occur.

Cancer affects any part of the body.

salwanadeem salwanadeem · Answer 2 · 2020-04-23T03:10:13+02:00

Answer:

B. the cell must lose normal cell division controls

Explanation:

Cancerous cells are different from normal cells primarily because they divide uncontrollably which means they lose normal cell division controls. Hence option B is correct. The other options are not true, exposure to a carcinogen is not a primary difference between normal cells and cancerous cells, there is no such condition that the cell must go through mitosis 25 times and the cell can be located in tissues other than the connective or muscle tissue. Cancerous cells can also be present in the bone tissue or blood tissue.

Hence, option B is correct.