An object is reflecting electromagnetic waves with a length of 720 nanometers. What is the object?
A. A red apple
B. A blue shirt
C. A yellow rose
D. A green hat
Answer: A
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What type of habit behavior might also be called a body-focused repetitive behavior?
a. motor tics b. vocal tics c. nervous habits d. stuttering
As an African American, Sanyu is aware of the negative stereotypes regarding racial differences in intelligence. If he experiences stereotype threat while taking an intelligence test, it is likely that ________
a. Sanyu's self-conscious awareness of the stereotype may worsen his test performance. b. Sanyu's test score will be unaffected, but he will feel uncomfortable throughout the test. c. Sanyu's awareness of the stereotype will motivate him to excel on the test. d. Sanyu will return the test to the administrator completely blank.
In the United States, the most common concept of a family is a single set of parents and children, or a(n) _____ family
A) nuclear B) reconstituted C) extended D) isolated
Which of the following would be good evidence that dental health is a trait subjected to sexual selection?
A. Men in romantic situations smile more than usual, revealing their teeth. B. Men have better dental health on average than women. C. Men with poor dental health have higher reproductive success. D. Women have better dental health on average than men.