Different areas of the brain become more active when recognizing someone of the same race versus someone of a different race

Mrs. Scarpaci is complaining that the street noise is louder in her apartment than in her upstairs neighbor's. To test her claim, you check the noise in each apartment with a sound meter

The meter registers 50 db in Mrs. Scarpaci's apartment and 30 db in her neighbor's. How much louder is the street noise in Mrs. Scarpaci's apartment? a) 10 times louder b) 50 times louder c) 100 times louder d) 200 times louder

Which of the following statements is true?

a) Infants as young as 3 months show a gender-based preference for looking at either trucks (boys) or dolls (girls). b) Boys and girls show no difference in toy preference (dolls or trucks) until about age 4. c) Children have to be explicitly taught which toys to prefer, dolls for girls and trucks for boys. d) Until age two, boys and girls both prefer dolls over trucks to play with.