What does each mitochondrion contain?
a. ?46 chromosomes
b. An X but never a Y chromosome
c. ?Nuclear DNA
d. ?Several copies of a ring-shaped DNA molecule, or chromosome
e. A Y but never an X chromosome
d
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Gift giving among family members at Christmas is an example of
a. barter. b. market exchange. c. reciprocal exchange. d. redistributive exchange.
A coprolite is defined as:
A. a fossilized tooth or other dental material B. a tree ring C. a coral or sea shell D. fossilized fecal matter
The abbreviation "BC" referring to age in an archaeological or historic context means:
a. By Century b. Before Common Era c. Before Christ d. Before Coming e. By Christian Era
The use of subsistence resources, including outcomes of production, is ___________
a. subsistence b. economic system c. consumption d. allocation