What has been found regarding the impact of sleep on people's ability to perform a sequenced finger-tapping task?

a. practicing two skills on the same day can interfere with retention of the second skill practiced.

b. practicing two skills on the same day can interfere with retention of the first skill practiced.

c. reviewing a recently learned skill before beginning to practice a new one can interfere with retention of the new skill.

d. reviewing a recently learned skill before beginning to practice a new one can interfere with retention of both skills?

How do most people in israel and its neighbors differ from political extremists such as terrorists

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.

What are the most populous and least populous areas of russia? and why are some areas more heavily populated than others?