The processes that are not taking place which allow for tumors to form is that the cancer cells are not responding to the signals that regulate the growth of cells. Living cells use cell division to reproduce and to repair damages; cell division is tightly controlled by the body system. When cells stop responding to the regulating signals, tumors will be formed.<span />
Endoderm forms the epithelium—a type of tissue.
Answer:
I would love to help but I got that answer wrong before and I keep trying over and over again
Explanation:
It would be tightening the cap of a water bottle because you twist a screw for it to become tighter :)