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What is the age of the oldest hominin tools found so far?


A) 1.7 million years ago
B) 3.3 million years ago
C) 0.3 million years ago
D) 0.2 million years ago

E) A) and B)
F) A) and C)

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Which of the following is not a feature that suggests bipedalism?


A) foramen magnum of the skull oriented vertically
B) femur with a ball at its top
C) spine with a double curve
D) long curved toes and fingers

E) A) and B)
F) A) and C)

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What feature do humans and other primates share that caused Linnaeus and other early taxonomists to group them together?


A) opposable toes
B) forward-facing eyes
C) a tail
D) hair

E) All of the above
F) None of the above

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Researchers studying human genomes have found that two African Bushmen living within walking distance of one another have more genetic diversity than a European and an Asian who live thousands of miles apart. Explain this observation.

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This observation can be explained by the...

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Hominins include


A) all of the great apes.
B) humans and all extinct species branching from the human lineage after the split from the last common ancestor with chimpanzees.
C) humans and chimpanzees.
D) species belonging to the genus Homo.

E) B) and C)
F) A) and D)

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Some controversial evidence of hominin tools in China suggests that hominins may have left Africa as early as


A) 60,000 years ago.
B) 1 million years ago.
C) 2.1 million years ago.
D) 500,000 years ago.

E) A) and B)
F) B) and D)

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Describe the classification of humans, including a description of the order, family, genus, species, and the hominin clade.

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Humans are classified within the order P...

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How recent is Homo naledi thought to have lived?


A) 300,000 years ago
B) 236,000 years ago
C) 200,00 years ago
D) 47,000 years ago

E) B) and C)
F) All of the above

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How could upright walking have helped early hominins stay cool?


A) increased convective heat loss
B) cutaneous evaporative cooling
C) minimized skin exposure to the sun
D) b and c
E) a, b, and c

F) B) and C)
G) B) and E)

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Which of the following is not a type of Oldowan technology?


A) hammer stone
B) flake scraper
C) hand axe
D) bifacial chopper

E) B) and C)
F) B) and D)

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Does the fact that humans are more capable than most organisms of altering their environment relax selection pressure on some traits? Please explain using an example.

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Yes, the fact that humans are more capab...

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Compare Oldowan and Acheulean technology and describe how each may have contributed to the evolution of humans.

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The Oldowan and Acheulean are two distin...

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When does figurative art, such as cave paintings and sculpture, begin to appear in the fossil record?


A) approximately 75,000 years ago
B) approximately 60,000 years ago
C) approximately 40,000 years ago
D) approximately 35,000 years ago

E) B) and C)
F) All of the above

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Our earliest evidence suggests that Homo sapiens evolved in Africa; how long did our own species stay in Africa before spreading outside the continent?


A) almost 500,000 years
B) almost 300,000 years
C) almost 200,000 years
D) almost 100,000 years

E) A) and D)
F) B) and D)

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Which of the following neurotransmitters is associated with motivation?


A) dopamine
B) acetylcholine
C) epinephrine
D) nitric oxide

E) All of the above
F) B) and C)

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How do the brains of Homo naledi and H. floresiensis complicate explanations of hominin brain evolution?


A) They are larger than other hominin brains, which makes them outliers the general trend.
B) They have an unusually large forebrain.
C) They are significantly smaller than other hominins of their time.
D) They do not complicate hominin brain evolution; they fall in line.

E) None of the above
F) All of the above

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What lines of evidence have scientists been able to use to study brain evolution over the past four million years?

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Scientists have used multiple lines of e...

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Which hypothesis about the selective forces influencing brain size has the strongest supporting evidence?


A) Brain size increased as humans became more social and cultured.
B) Brain size increased as making tools and using them to process food increased.
C) Brain size has mostly experienced stasis as opposing selective forces result in stabilizing selection.
D) a and b

E) A) and B)
F) A) and C)

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________ are typically ________, but with increased expression of the vasopressin gene, begin to act like ________ voles.


A) Prairie voles; monogamous; polygynous
B) Meadow voles; polyandrous; monogamous
C) Prairie voles; polygynous; monogamous
D) Meadow voles; polygynous; monogamous

E) B) and C)
F) C) and D)

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Why might natural selection have favored hands with fingers capable of precise movements in Homo erectus?


A) Fine motor control would facilitate tool use.
B) Precise movements would facilitate movement among tree branches.
C) Increased tool use would allow hominins to access more food.
D) a and c
E) a, b, and c

F) A) and E)
G) A) and D)

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