The structure of DNA was discovered by

Zach and April are both asked to solve the problem "4 + 5 + 6 = __ + 7". Zach puts "22" in the blank and says, "I added four plus five plus six plus seven to get twenty-two"

As he explains his answer, he points to the 4, 5, 6, 7, and then to the answer blank. April puts "15" in the blank and says, "Four plus five is nine, plus six is fifteen." As she explains her answer, she points to the 4, 5, 6, 7, and then to the answer blank. Later, Zach and April receive instruction on the problems. Which of the following is most likely true of their learning? a. Zach will learn more from instruction than April b. April will learn more from instruction than Zach c. Zach and April will learn about the same from instruction d. none of the above

The term "boomerang generation" refers to the finding that today:

a. young adults are likely to move back in with their parents b. family incomes are declining rather than rising c. marriages are occurring at older average ages d. parents are less likely to pay for their children's college expenses