Natural selection is a mechanism that explains
A) only gradual change within a species.
B) Mendel's laws of inherited variation.
C) both changes within a species and the appearance of new species.
D) both geological and biological changes.
E) none of the above.
C
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Why is linguistic diversity important? a. It is the only way some people can communicate with each other
b. It is associated with cultural diversity, essential to the survival of our species. c. It allows us to use innovative ways of communicating to perfect language. d. We need (and use) many languages to fully express a globalizing culture.
One of the fastest-growing international specializations is speculation in the petroleum industry
a. True b. False Indicate whether the statement is true or false
At the end of the first division of meiosis, each second-generation cell contains:
A. 46 double-stranded chromosomes B. 46 single-stranded chromosomes C. 23 double-stranded chromosomes D. 23 single-stranded chromosomes
According to Weber, what are the three dimensions of social stratification?
A. wealth, power, and prestige B. age, gender, and ethnicity C. status, exchange, and religion D. gender, ethnicity, and race E. the means of production, mode of production, and measure of production