The first eukaryotes appear in the fossil record around __________years ago
a. 3.4 billion
b. 1.5 billion
c. 850 million
d. 600 million
Answer b
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All of the following are key ideas to take away from this chapter's discussion of sexual orientation except:
a. Different types of sexual desires and experiences hold different meanings for individuals and groups. b. In a society, individuals will differ in the nature, range, and intensity of sexual interests and urges. c. Culture always plays a role in molding individual sexual urges toward a collective norm and these norms vary from culture to culture. d. Asexuality, indifference toward, or lack of attraction to either sex, is also a sexual orientation. e. There is conclusive scientific evidence that sexual orientation is genetically determined.
The agricultural research that resulted in the Green Revolution developed new crop varieties that have been called "high responders" because
A) they have responded well to the expectations of the researchers. B) they respond by growing well under all conditions, even in bad years. C) they respond by producing more with less water and fertilizer. D) they respond with increased yields to optimum amounts of fertilizer and water. E) none of the above.
Root crop farming is also known as:
a. taroculture b. vegeculture c. horticulture d. agriculture
Several events combined to alter Western Europeans' ideas about the earth by the 18th century. These did not include:
a. the circumnavigation of the globe. b. the discovery of the New World. c. the invention of the microscope. d. a less than rigid feudal class system. e. the notion of a sun-centered universe.