Will humanity ever discover everything we need to know about planet earth? I ask this because I know the answer is no, but I do want to know if people will eventually learn so much about the world that people will end up discovering everything they need to know. And that finally, someone can just tell us why we are here. Scientists believe evolution is the reason why people exist but what about the clear history of humanity? So I guess the real question is why do we question something we already know the answer to?

According to the federal regulations, which of the following studies meets the definition of research with human subjects? a. a researcher uses the customs office’s passenger lists for ships bringing immigrants to the us between 1820-1845 to track the numbers of immigrants from certain ethnic groups. b. a researcher conducts a linguistic study of comments posted on a local public blog. c. a developmental psychologist videotapes interactions between groups of toddlers and their care givers to determine which intervention methods most effectively manage aggression. d. a researcher asks the director of a local free clinic about the number of patients in the last two years with newly diagnosed hiv/aids.