Primates are able to see in three dimensions because:
A. the eyes lie on the front of the face
B. the visual fields of each eye overlap
C. of changes in the optic nerves and the brain
D. all of these
D. all of these
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Which of the following was a common precipitating factor in song duels among Inuit peoples?
a. territory conflicts b. hunting disputes c. sexual jealousy d. parenting conflicts
Which of the following are more closely related to ourselves?
a. gorillas b. lemurs c. orangutans d. bonobos
Among the Canela, it is improper for a mother, sister, or daughter to cut a man's hair
a. True b. False Indicate whether the statement is true or false
A polytypic species
a. is one that has no phenotypic variability. b. has never been observed in nature. c. is one composed of local populations that differ from one another with regard to the expression of NO MORE THAN three traits. d. is one composed of local populations that differ from one another with regard to the expression of ONE OR MORE traits. e. is the result of inbreeding.