What role does selenium have in cancer development?
a. the incidence of lung, prostate, and colon cancer decreased in one selenium-supplemented group.
b. the incidence of skin cancer is low when selenium intake is high.
c. selenium has no effect on cancer development
d. selenium supplements have been shown to benefit the general population
Answer: b. the incidence of skin cancer is low when selenium intake is high.
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Caffeine can lead to _____
a. increased heart rate b. decreased blood pressure c. decreased urine production d. weight gain e. dehydration
Choose the set of terms that describes fast-twitch ?bers
A) contract slowly/fatigue-resistant/dark red/aerobic ATP production B) contract quickly/fatigue quickly/white/anaerobic ATP production C) contract quickly/fatigue-resistant/red/generate great force D) contract slowly/fatigue quickly/pale/aerobic ATP production
Which food most likely resembles what our early human ancestors would have eaten?
a. whole milk b. oatmeal c. cheese d. berries e. refined grain products
Only water transports substances such as lipids, vitamins, and minerals throughout the body
a. True b. False Indicate whether the statement is true or false