ANT 111 Chapter 3

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According to the website, what do scientists think will happen to skin color in 100 years? Answers: a. Many more "in-between" skin colors will exist. b. Fewer very dark or very light complexions will exist. c. More very dark or very light complexions will exist. d. A and B only. e. None of the above.

D. A and B Only

Allen's rule does not hold for human populations.

False

Sickle-cell anemia is only found in Africa.

False

Skin color is a good indicator of a person's cultural heritage.

False

The frequency of the O allele is almost 100 percent in indigenous

South Americans

A facultative change, or acclimatization, is a response that occurs during an individual's lifetime.

True

Modern humans origins can be traced back to Africa using mtDNA.

True

Skin color exists on a continuum.

True

People with darker skin cannot synthesize __________________ as efficiently as people with lighter skin.

Vitamin D

In ancient times, people were divided according to all of the following EXCEPT: Answers: a. Class b. Skin Color c. Language d. Religion

b. Skin Color

An individual from which country is most likely to carry the sickle cell trait? Answers: a. Ireland b. South Africa c. Samoa d. Greece e. Mexico

d. Greece

If you know a person's skin color, what can you predict about them? Answers: a. Whether or not they have musical abilities b. Their height c. Their blood type d. The likelihood they will get certain diseases e. None of the above

e

Most of the traits associated with race are

found on several genes and are influenced by the environment

Vasoconstriction

is a mechanism for conserving body heat in cold environments

Vasodilation

is a mechanism for radiating body heat in hotr enrionments

Melanin

is found in the skin and protects from UV

melanin

protects from ultraviolet radiation

In its most common biological usage, the term race

refers to the geographically patterned phenotypic variation within a species

biological determinism

the false belief that there is a relationship between physical traits and certain behavioral traits such as intelligence and morality


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