Which of these traits are most diagnostic of living and fossil hominids?
A) opposable thumbs
B) long arms
C) bipedalism
D) short canines
E) teeth that have evolved as weapons
C
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While it certainly is subject to natural selection and shaped by environment, _________ is not a particularly good indicator of a person's geographic origin
a. skin color b. eye form c. head shape d. hair color
The Garbage Project demonstrated which of the following about America's landfills?
a. Thanks to the recent public focus on recycling, only about 1% of our landfills' space is taken up by paper products. b. Disposable diapers, plastic bottles, and large appliances together make up roughly 50% of a landfill's volume. c. Very little in our landfills actually biodegrades; after 20 years, from 1/3 to 1/2 of all organic materials are still recognizable. d. Organic material tends to biodegrade rapidly in our landfills, leaving abundant room for other types of garbage; contrary to popular opinion, space for landfills around large cities is in no danger of running out. e. For the most part, America is a cleanly country.
All individuals within a population have the same capacity for adaptation
a. True b. False Indicate whether the statement is true or false
Groups such as the San frequently practice each of the following except:
a. ?combative techniques for reinforcing group cohesion. b. extremely permissive child-rearing practices. c. ?a regular pattern of visiting to avoid conflict within the group. d. ?the use of joking to diffuse tense social situations.