Which of the following is true regarding identical and fraternal twins?
A. Fraternal twins tend to run in families.
B. Comparing identical and fraternal twins can tell us about the relative contribution of genetics and environment.
C. Monozygotic twins have exactly the same genes.
D. all of these
Answer: D
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According to Erikson, the crisis of identity vs. confusion typically occurs during:
a. the early elementary school years. b. the middle school years. c. the high school years. d. young adulthood.
Students who are deaf who do not go on to postsecondary training may face increased obstacles to employment in the future because
A) increasingly fewer employers are willing to employ workers who sign. B) the manual trades that they typically prepare for are disappearing. C) antidiscrimination laws do not cover students with inadequate training. D) there will be increased competition for the same jobs by individuals with other disabilities.
Which word implies a qualitative approach in a purpose statement?
a. influence b. understand c. impact d. relationship
At the present, the population of the world is between
a. 800 and 900 million people b. 1 and 2 billion people c. 3 and 4 billion people d. 6 and 7 billion people