Some data indicates that exercise can increase a protective substance that may enhance hippocampal activity and memory. This substance is known as

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.

During the 1500s,most rulers supported established a. political systems. d. none of the above b. churches c. freedom of speech

Which of the following is the best explanation of the difference between prejudice and discrimination?