Prior to the 20th century, death by heart disease or cancer was dramatically low. Which of the following was a major contributing cause?
a. infectious diseases and a short life expectancy
b. diets that were made up of natural and organic foods
c. better access to health care facilities and trained physicians
d. an agrarian-based lifestyle that was far removed from carcinogens
Answer: A
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Natissia believes that boys learn to be more aggressive than girls primarily becuse boys are more frequently exposed to external pressures to fight. Natissias's belief most direclty exemplifies the ________ perspective
Fill in the blank(s) with the appropriate word(s).
The threshold on a dose-response curve is the
A. point at which the dose of the drug causes maximal response. B. lowest dose at which there is an observable effect of the drug. C. safe effective dose of the drug. D. therapeutic index of the drug.