The most advanced cultures in North and South America prior to European discovery were concentrated in which region?
a. The current United States
b. The area that is currently central Mexico south to northern South America
c. The southernmost portion of South America
d. The area that is now the U.S. west coast
Question 2
Family life cycle research has found that:
a. during the eighties, age at first marriage differed substantially from the pattern at the turn of the century
b. all families go through similar stages of development
c. few families experience substantive changes in the internal system of role relations during their passage through the family life cycle
d. the idea of a family life cycle is a useful measure of change in families
European Rabbit in Shropshire, England, infected with myxomatosis, a disease caused by the Myxoma vi
Map of Mars from Hubble Space Telescope as seen near the 1999 opposition. (North top)
Discovery of Charon
Discovery of nonsense-mediated mRNA decay (NMD).
North America
Ice cores: Periods of rapid climate change especially in North Atlantic