What are the three causes of cancer?
All cancer is caused by an alteration in specific regions of the DNA that code for the many proteins that regulate the cell cycle. About 5% of cancer-causing DNA alterations are inherited from our parents at conception. During our lifetime "external" factors can initiate or promote cancer. These include tobacco use, poor diet, and exposure to harmful chemicals, radiation, and infectious organisms. There are also "internal" factors such as hormones, immune conditions, and mutations that occur spontaneously and initiate cancer.
You might also like to view...
It takes 1.5 hours for the liver to metabolize one standard drink.
a. true b. false
Which treatment is most often used to manage MODS?
A) ?surgery B) ?mechanical ventilation C) ?induced hypothermia D) ?extra-corporeal membrane oxygenation
Phytates in legumes and cereals ________ copper and iron
A) promote digestion of B) absorb more C) bind D) zero absorption of
Which of the following positions are public health managers not likely to deal with? a. Resource allocation
b. The direct provision of service. c. Research. d. Funding issues.