Answer:
I think it's a PEBBLE, or River Rock it's type of a rock that can be found on shallow bodies of water
Oncogenes result from turning on, or activating proto oncogenes. Proto oncogenes are genes that code for positive cell cycle regulators, so proto oncogenes code for proteins that turn on cell division. Proto oncogenes are normal genes, but when they are mutated, they become oncogenes. Oncogenes are expressed too much, which makes them turn on cell division too much, which is cancer.
The fact that it's a renewable resource would be the only benefit. All of the others are disadvantages
Epithelium is the thin tissue forming the outer layer of a body's surface and lining the alimentary canal and other hollow structures.
