A general problem with advance directives is that they may be ignored by physicians or family members.
a. true
b. false
Ans: a. true
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When we graph results from an experiment, a line graph is appropriate when
a. the independent variable is interval or ratio. b. the independent variable is nominal or ordinal. c. the dependent variable is nominal or ordinal. d. the dependent variable is interval or ratio.
In his book, why did Copernicus switch the positions of the earth and sun, placing the sun at the center of the universe?
a. To explain how lunar eclipses are possible b. To improve his ability to make astronomical predictions c. To provide proof for the Ptolemaic and Aristotelian concept of a final, equidistance sphere of fixed stars d. To eliminate the need for Ptolemy’s equants (hypothetical points)
Using the figure above, it is correct to say
a. there was no migration activity into or out of Russia b. most migration flows originate and/or end in Asia c. there is no migration activity in Africa d. climate change explains most of these migration patterns e. earthquakes were the push factor that propelled the majority of the migration
Which statement about adolescent friendships is true?
A) Close friendships in early adolescence often interfere with identity development. B) Close friendships provide a foundation for future intimate relationships. C) Even friendships characterized by aggression and antisocial behavior contribute to psychological health and competence. D) Close friendships have a negative impact on school adjustment, academically and socially.