The beta subunit HCG radioimmunoassay can detect pregnancy about
A) eight days after conception.
B) three weeks after conception.
C) four weeks after conception.
D) six weeks after conception.
A
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Which statement below is true of drug addiction?
a. Withdrawal symptoms and tolerance are the result of compensatory mechanisms. b. The withdrawal symptoms that occur in heroin addicts are less dangerous than those that occur in alcoholics. c. Withdrawal symptoms are usually less intense versions of the drug effect. d. Drug addiction is caused by physical dependence. e. Cocaine addiction is the result of physical dependence.
According to the text, the greatest age-related decline in deaths from ages 35-44 to ages 55-64 is in which of the following causes of death?
a. cancer b. heart disease c respiratory disease d. accidents