In the study of finches' beaks, the biologists Peter and Rosemary Grant found that ____
a. Darwin had underestimated the power of natural selection
b. under drought conditions, more thick-than thin-beaked birds survived and reproduced
c. in only one generation, natural selection produced a better-adapted species
d. ?when heavy rains became common, birds with slender beaks flourished
e. All of the choices are correct.
e
You might also like to view...
It is estimated that it will cost middle-income parents about ____ to raise a child born in 2012 from birth through high school
a. $80,000 b. $180,000 c. $240,000 d. $800,000
Studies conducted by ____________________ involve a doll named Bobo who showed that children could learn behaviors simply from observing others perform them
Fill in the blank(s) with correct word
Llam, a freshman psychology major, is attending a talk by a guest speaker, who is a human factors psychologist, a specialty area that Llam is interested in exploring as a future career. This talk by the guest speaker is part of his psychology department's activities known as the ___________
Fill in the blank(s) with correct word
Which of the following policies is most likely to reduce adolescent smoking?
A. a sharp rise in the price of tobacco products B. additional information about the health risks of smoking C. an anti-smoking education campaign in school D. an anti-smoking ad campaign featuring celebrities