A.   the product of natural selection occurring over thousands of years

B.   a social classification that is often assumed to have a biological basis

C.   a group of people defined statistically by clusters of linked genetic traits

D.   a biological classification based on the presence or absence of specific genetic traits

E.   a clearly defined biological breeding population

A.   universally present in all human groups

B.   due to a combination of genetic and environmental factors.

C.   a recessive allele

D.   determined purely by genetic traits

A.   Are a reliable indicator of genetic differences in intelligence

B.   are culturally biased

C.   can discriminate between genetic and cultural factors in native intelligence

D.   show no significant differences in intelligence among human populations

A.   the result of genetic experiments gone awry.

B.   present in all people of West African descent.

C.   a genetic adaption to the malarial parasite

D.   always debilitating

A.   culturally arbitrary, even though most people assume them to be based on biology

B.   based on genealogical records

C.   applied to endogamous breeding populations

D.   based on DNA testing

A.   The transparency or thickness of the skin.

B.   Reflected color from the blood vessels.

C.   Reflected color from the blood vessels... And The foods that you eat….and The transparency or thickness of the skin. …and

D.   The foods that you eat.

E.   the pigments carotene and melanin.

A.   subtle variations in skin color among racial groups

B.   gradual variation in genetic traits across geographic regions

C.   the genetically determined ability to sing on key

D.   Genetic variation with the Cline family lineage.

A.   Show that Europeans and Africans are easily distinguishable, but Asians are hard to classify

B.   easily sorted into 3 or 4 major groups

C.   show continuous clinal variation across space

D.   correspond to the major continents

A.   polymorphic

B.   influenced by culture

C.   Climatic

D.   hereditarian

E.   polytypic

A.   The Inuit have a body build similar to many tropical peoples

B.   The Inuit are a cold-weather adapted population

C.   The Inuit are a cold-weather adapted population , The Inuit have a body build similar to many tropical peoples, The Inuit have a similar body build to Neandertals, with stocky bodies and shorter legs.

D.   The Inuit have a similar body build to Neandertals, with stocky bodies and shorter legs.

E.   The Inuit are so well-adapted to the cold that they wear little clothing.