After smoking, the next leading cause of lung cancer is
A) molds.
B) carbon monoxide.
C) radon.
D) asbestos.
C
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Today, the risk of being infected with HIV from a blood transfusion is high
Indicate whether this statement is true or false.
The paranasal sinuses act as an echo chamber for sound production
Indicate whether the statement is true or false
A ketogenic diet is a diet that:
A. prevents the body from producing too many ketones, and is therefore a low-fat, high-carbohydrate diet to force the body to burn sugar instead of fat. B. prevents the body from producing too many ketones, and is therefore a high-fat, low-carbohydrate diet to force the body to burn fat instead of sugar. C. aids in the production of ketones in the body, and is therefore a low-fat, high-carbohydrate diet to force the body to burn sugar instead of fat. D. aids in the production of ketones in the body, and is therefore a high-fat, low-carbohydrate diet to force the body to burn fat instead of sugar.
Which statement best defines the vas deferens?
A) It is a gland that contributes alkaline fluid to the semen. B) It is the foreskin that covers the head of the penis. C) It is a gland that nourishes sperm. D) It is a tube that transports sperm into the ejaculatory duct.