The substance that causes menstrual cramps is ______.
A. prostaglandins
B. estrogen
C. amenorrhea
D. cortisol
A. prostaglandins
History
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Examine the changes in the structure and the roles of the family that occurred in the early- and mid-1800s.
What will be an ideal response?
History
The Athenian leader whose funeral oration lauded Athenian democracy was
a. Antigones. b. Lycurgus. c. Knosses. d. Pericles. e. Cleisthenes.
History
What were the critical differences between the English settlements in Virginia and Massachusetts?
What will be an ideal response?
History
The largest nation, both in size and population, in South America is
a. Mexico b. Brazil c. Argentina d. Venezuela e. Chile
History