Estrogen level increases with obesity and alcohol use, and is considered an important risk for breast cancer. Select one

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Estrogen level increases with obesity and alcohol use, and isconsidered an important risk for breast cancer.
Select one:
True
False
Smokers have difficulty expelling foreign particles from thelungs because
a. all of these answers are correct
b. cilia are damaged
c. nerve stimulation is reduced
All drinkers develop tolerance to alcohol after repeateduse.
Select one:
True
False
Exercise is beneficial in situations involving cancer for all ofthe following reasons EXCEPT
a. Reducing psychological stress
b. Increasing chemical and hormonal activity
c. Boosting the immune system
d. Lowering of inflammatory responses
e. Improving heart function after treatments
d. the protective mucous layer becomes too thin