It is problematic for researchers to identify the deepest node in a phylogenetic tree because __________
a. it is possible to construct a number of different possible phylogenetic trees from one dataset
b. mutations occur at a clock-like rate
c. genetic data provides no insights into what the bodies carrying the genes looked like
d. a fossil evidence is scarce
Correct Answer: a
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Which of the following is a trend that has led to the need to distinguish nations from states as the two terms are defined in the text?
A) increasing sedentism B) increasing population density C) large-scale migrations D) the broader scope of organized warfare
Modern foragers are not Stone Age relics, living fossils, lost tribes, or noble savages. Still, to the extent that foraging has been the basis of their subsistence, contemporary and recent hunter-gatherers
A. are the closest we can come to studying true human nature. B. illustrate links between foraging economies and the emergence of social stratification. C. suggest that the most basic motive driving human survival is the need for power. D. can illustrate links between foraging economies and other aspects of society and culture, such as their sociopolitical organization. E. illustrate the social precursors to hegemony.
The observable appearance of a pea plant is called its
a. stereotype. b. phenotype. c. prototype. d. genotype.
Patrilineal descent groups: a. are the most common of the unilineal descent groups. b. are found only in North and South America. c. trace descent through lines of females? for example, the mother, mother's mother, sister's daughter, and soon
d. are ones in which a woman's children are members of her descent group. e. are ones in which a woman's female children are members of her descent group, while her male children arealways allied with their father.