A sustained directional shift in a population's average characteristics is called:
a. cladogenesis
b. genetic drift
c. anagenesis
d. speciation
c
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The sectorial premolar complex can be used to __________
a. determine the diet of a primate b. determine the age of primate fossils c. differentiate between hominins and apes d. differentiate between the sexes in hominin species
Scientific theories are open to future challenges
a. True b. False
A person who is homozygous recessive at a locus has which of the following?
a. two copies of the recessive allele b. two copies of the dominant allele c. an autosomal trisomy d. a recessive allele on the X chromosome only e. a recessive allele on the Y chromosome only
Trobriand Island children begin playing erotic games around the age of:
a. 4 to 5 years b. 12 to 13 years c. 7 to 8 years d. 10 to 12 years