A genetic study of the Duffy blood group revealed that __________
a. modern Hungarians have origins from central Asia
b. the Lemba in Africa are indeed genetically related to Semitic populations
c. African and European populations have genetically mixed in the United States
d. all of these
Answer c
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A) marginal revenue; marginal cost B) marginal revenue; average total cost C) marginal cost; average total cost D) marginal cost; average variable cost
What is a disease?
A. a health problem as it is experienced by the one affected B. an artificial product of biomedicine C. a consequence of a foraging lifestyle D. an unnatural state of health E. a scientifically identified health threat
Vodou is an example of what type of religion?
a. Mixed b. Reactionary c. Syncretic d. Juxtaposed e. Assimilated
The notochord is:
A. an internal skeletal element B. a nerve chord C. an element of the circulatory system D. a musical instrument