For modern biologists, the defining feature of a species is usually
A) geographic isolation from other species
B) greater than 50% genetic incompatibility
C) the phenotypic similarity of its members
D) phenotypic differences from other species
E) reproductive isolation from other species
E
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In the United States, the second largest source of immigration is from __________
a. Latin America b. Asia c. Europe d. sub-Saharan Africa
Describe how humans vary in external morphology. In your answer, be sure to give two examples of how humans vary in at least three specific morphological features such as size, shape, color, etc.
What will be an ideal response?
According to some estimates, the world's linguistic diversity has been cut in half in the past 500 years, and half the remaining languages are predicted to disappear during this century. Why does this matter? Isn't this just a natural result of globalization, something we should actually celebrate because it makes communication among diverse groups much easier?
What will be an ideal response?
The extended family seems to have clear advantages:
a. In stable cultivating societies where ownership of land is important. b. In hunting and gathering societies living on the margins of existence. c. In industrial societies with large urban populations. d. In socialist rather than capitalist societies. e. Where marriage is a matter of free choice rather than arrangement.