Investigators wish to evaluate a new treatment for eclampsia (a life-threatening condition in pregnant women) in women 30 – 50 years of age. the research is intended to directly benefit the pregnant woman who is otherwise healthy and competent. the investigator must obtain consent from whom?

In 1914, alabama produced 1.7 million bales of cotton, but three years later produced only 515,000, bales. meanwhile, in georgia, 5.2 million acres of land was dedicated for cotton production in 1914, but by 1923 there were just 2.6 million acres used for growing cotton. all of this was the result of the work of a tiny insect: the boll weevil. alabama and georgia first felt the effects of the boll weevil at different times. what would account for this difference in timing? a) the infestation moved from west to east. b) the infestation moved from east to west. c) georgia had better ways to deal with the problem. d) alabama was further from the insect's point of origin.

In the 1950s and 1960s, chief justice earl warren was a strong advocate for?

People who spend more money on binoculars tend to know more about birds than people who spend less or none. this observation was almost certainly based on what kind of study? a. double-blind study b. correlation c. anecdote d. single-blind study