Which of the following statements about adaptation is incorrect?
a. Many traits have no adaptive function
b. Adaptations are adjustments to a specific environment.
c. Adaptation at a genetic level reveals natural selection.
d. Natural selection and adaptation always promote genetic change.
d
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The first clear evidence of stone tools appeared more than __________ million years after the appearance of bipedalism.
A) 1 B) 2 C) 4 D) 10
Of the following species, which is oldest?
A. Paranthropus robustus B. Paranthropus boisei C. Australopithecus africanus D. Australopithecus afarensis
Cheifdoms
a. are rarely sedentary b. inevitably develop into states c. require elaborate hydraulic systems if they are to grow into states d. are the most common social arrangement of human populations e. were precursors to states, with privileged and effective leaders-chiefs- but lacking the sharp class divisions that characterize states
People who have a longstanding connection with their home territory predating colonialism are referred to as __________
A) ethnic groups B) indigenous people C) local groups D) racial groups