Why do researchers believe language emerged?
a. Displacement
b. Productivity
c. Symbolism
d. Signaling
Answer: a
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According to the text, gene therapy currently includes all of the following methods EXCEPT:
A. replacing one sequence with another at the same locus via recombination. B. inserting a sequence into a coding region of DNA. C. altering the regulatory portions of a locus such that the alleles at the locus are turned on or off differently. D. replacing one sequence with another at the same locus via induced mutation.
There is no system of exchange in societies in which the same people are both the producers and the consumers
a. True b. False Indicate whether the statement is true or false
The most usual kinship structure in tribal societies is __________
a. bilateral descent b. a kindred c. unilineal descent d. nuclear families
Chiefdoms are stratified societies organized by __________
a. semi-divine leaders b. reciprocal economic functions that are unequal in benefits c. warfare and conquest d. kinship