The only preaustralopithecine (nicknamed Tuomai) found outside the East African Rift Valley is:
a. Orrorin tugenensis
b. Ardipithecus kadabba
c. Ardipithecus ramidus
d. Australopithecus anamensis
e. Sahelanthropus tchadensis
Answer: e. Sahelanthropus tchadensis
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Mendelian traits
a. are governed by several genetic loci. b. are more likely to have identifiable loci than polygenic traits. c. have continuous distributions. d. can be described by statistics such as the average and standard deviation. e. have phenotypic expressions that are often the result of genetic and environmental interactions.
Diglossia refers to:
a. fluency in two languages. b. an inability to speak. c. a practice of using more than one form of the same language within the same language community. d. a speech problem that causes a person to not be able to associate words with meanings. e. the inability of a person to learn more than one language during a lifetime.
A major goal of the Human Genome Project is to
a. facilitate human cloning. b. map the chromosomes of every human on the planet. c. sequence the entire human genome. d. trace evolutionary relationships among primates. e. prevent overpopulation.
The argument that each individual member of a species transforms itself to meet the challenges of a changed environment through the laws of use and disuse and inheritance of acquired characters was made primarily by
A. Lyell B. Cuvier C. Lamarck D. Darwin