You are a paleoanthropologist uncovering fossils in East Africa. Using a certain technique, you discover that a humanlike fossil is in a stratum between a volcanic eruption dated at 2.9 million years and another volcanic eruption whose rocks give a date of 3.6 million years. The fossil is about midway between these layers so you assign a tentative date of 3.2 to 3.3 million years to your fossil
What technique are you using?
a. Radiocarbon analysis
b. Stratigraphy
c. Dendrochronology
d. Potassium argon analysis
e. Grid system
d
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Gene flow in skeletal populations is commonly traced by investigating __________
a. dental anatomy b. ancient DNA c. cephalic index d. the Duffy blood group
Which of the following is NOT true of colonies?
a. they are created by invasion b. they are maintained as colonies only until they are ready for independence c. a majority of the population is ruled by a minority from abroad d. they are ruled in accordance with the interests of the colonizing power
In primates, the position of the foramen magnum is correlated with habitual posture and thus can give important clued about locomotion
Indicate whether the statement is true or false
One of the reasons that few labor migrants return home is __________
a. their standard of living is greatly improved in the new country b. most labor migrants manage to become middle class c. few manage to save enough money because of the higher costs of living d. few want to return home