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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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
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
Gift giving among family members at Christmas is an example of
a. barter. b. market exchange. c. reciprocal exchange. d. redistributive exchange.
The use of subsistence resources, including outcomes of production, is ___________
a. subsistence b. economic system c. consumption d. allocation