Humans today still benefit from the famous invention of the Wright brothers (the airplane). Even though they have been dead for generations, their basic technology still lives on, and modern aircrafts have built off of and elaborated upon their invention. What best describes this?
a. generational division of labor
b. network of trade and exchange
c. praxis of creativity
d. progress through preservation of knowledge
D
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Some experimental male oral contraceptives contain a. synthetic GnRH
b. natural testosterone. c. progestin. d. synthetic estradiol.
The ________ theory of helping behavior suggests that we tend to help others because we can feel their pain or imagine how their situation is affecting them.
A. empathy-altruism B. environmental C. negative state relief D. arousal: cost reward
Nature is to nurture as biological is to
a. sexual. b. environmental. c. educational. d. creationist.
If an infant is born weighing 7 pounds, one can expect he or she to weigh about ____ by 12 months
a. 14 pounds b. 22 pounds c. 28 pounds d. 35 pounds