During the Vietnam war, at least _____% of enlisted men used heroin, and more than half of them became addicted while in Vietnam.
A. 35
B. 50
C. 10
D. 20
Answer: A
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Distinguish between the "head" and "tail" of phospholipids. Choose the correct option
A) The phospholipids have a nonpolar "head" and polar "tail." B) The phospholipids "head" contains hydrophilic phosphate and "tail" contains a hydrophobic hydrocarbon. C) The phospholipid "head" is hydrophobic and the hydrocarbon "tail" is hydrophilic. D) The phospholipid "heads" face each other and "tails" face the watery extracellular and intracellular environments.
The incidence of prostate cancer is much higher for White males than it is for Black males.
Answer the following statement true (T) or false (F)
The female sex hormone estrogen acts as a protective agent against heart disease in premenopausal women
Indicate whether the statement is true or false
List and describe the components of health-related fitness