Question 1

Draw your own phylogeny of the hominins discussed in Chapter 8. Explain the logic behind your phylogeny.

Accepted Answer

In Chapter 8, we discussed the evolution...

Question 2

The oldest possible hominin found to date has been given which genus name?

Accepted Answer

A)   Australopithecus
B)   Sahelanthropus
C)   Zinjanthropus
D)   Ardipithecus
E)   Orrorin

Question 3

Potassium-40 (⁴⁰K)

Accepted Answer

A)   decays to the gas, argon-40 (40Ar) 
B)   decays to carbon-14
C)   has a full-life of 1.25 billion years
D)   is the same as carbon-14
E)   is destructive and therefore not used by paleoanthropologists

Question 4

What are some of the hypotheses purporting to explain the evolution of bipedalism?

Accepted Answer

There are several hypotheses that have b...

Question 5

Discuss the combinations of anatomical characteristics found in Sahelanthropus, Ororrin, and Ardipithecus. Based on these characteristics, should these genera be considered hominins?

Accepted Answer

Sahelanthropus, Orrorin, and Ardipithecu...

Question 6

Sahelanthropus has an unusual combination of characteristics, including

Accepted Answer

A)   a small braincase, huge browridges, small vertical face, and lack of shearing canine/premolar arrangement
B)   a large braincase and huge browridges
C)   a small braincase and small muscle attachments in the rear of the cranium
D)   a small vertical face and small browridges
E)   a large vertical face and small browridges

Question 7

The earliest stone tools are dated to approximately

Accepted Answer

A)   2.6 million years old
B)   25,000 years old
C)   250,000 years old
D)   25 million years old
E)   50 million years old

Question 8

The A. afarensis hand, wrist, and foot bones are indistinguishable from those of modern humans.

Accepted Answer

A) True 
 B)False

Question 9

The first Homo habilis fossils were found during the 1960's in

Accepted Answer

A)   Olduvai Gorge
B)   Tugen Hills
C)   Toros Menalla
D)   Sterkfontein
E)   South Africa

Question 10

What is paleoanthropology?

Accepted Answer

A)   It is defined as the study of early humans.
B)   It is practiced by archaeologists ONLY.
C)   It is concerned with fossilized skeletal remains ONLY.
D)   It is defined as the study of fossilized non-primate mammals.
E)   It is practiced by physical anthropologists ONLY.

Question 11

_______ make the best samples for the K/Ar dating method.

Accepted Answer

A)   Bones
B)   Stone tools
C)   Ostrich shells
D)   Teeth
E)   Volcanic rocks

Question 12

What is the dating method that uses the principle that undisturbed underlying geologic deposits are older than overlying geologic deposits?

Accepted Answer

A)   stratigraphic dating
B)   paleomagnetism
C)   carbon-14 dating
D)   K/Ar dating
E)   fluorine analysis

Question 13

What have researchers concluded from the fossil remains of hominin feet from South Africa?

Accepted Answer

A)   They indicate obligate quadrupedalism.
B)   They indicate many forms of hominins spent considerable time in trees.
C)   They were adapted for quadrupedalism.
D)   They indicate the big toe could NOT have aided the foot in grasping.
E)   Remains from hominin feet have not been found in South Africa

Question 14

The fossil skeleton known as "Lucy" belongs to which species?

Accepted Answer

A)   africanus
B)   aethiopicus
C)   habilis
D)   boisei
E)   afarensis

Question 15

Thermoluminescence can be used on which of the following?

Accepted Answer

A)   Heated materials such as burned flint
B)   fossilized plants
C)   bone
D)   sedimentary layers of dirt
E)   petrified wood

Question 16

Remains of early genus Homo have been found in both East and South Africa.

Accepted Answer

A) True 
 B)False

Question 17

The Miocene hominoids

Accepted Answer

A)   were distributed over much of the New World
B)   were all members of the same species
C)   displayed little to no morphological variation
D)   were all about the size of a house cat
E)   evidenced the "golden age of hominoids"

Question 18

The hominin fossils from Laetoli and Hadar are classified by most researchers as

Accepted Answer

A)   Australopithecus africanus
B)   Homo afarensis
C)   Homo habilis
D)   Australopithecus robustus
E)   Australopithecus afarensis

Question 19

Which of the following methods are not used to identify hominin fossil sites?

Accepted Answer

A)   aerial photography
B)   satellite photography
C)   geological surveys
D)   water reside analysis
E)   vertebrate paleontology

Question 20

The earliest australopith fossils come from

Accepted Answer

A)   South Africa
B)   Asia
C)   East Africa
D)   North Africa
E)   Europe

Exam 9: Hominin Origins

What is paleoanthropology?

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The Miocene hominoids

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What are some of the hypotheses purporting to explain the evolution of bipedalism?

Correct AnswerAnswered by ExamLex AIThere are several hypotheses that have b...View AnswerShow Answer

The fossil skeleton known as "Lucy" belongs to which species?

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The hominin fossils from Laetoli and Hadar are classified by most researchers as

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Potassium-40 (⁴⁰K)

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Draw your own phylogeny of the hominins discussed in Chapter 8. Explain the logic behind your phylogeny.

Correct AnswerAnswered by ExamLex AIIn Chapter 8, we discussed the evolution...View AnswerShow Answer

What have researchers concluded from the fossil remains of hominin feet from South Africa?

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Thermoluminescence can be used on which of the following?

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Sahelanthropus has an unusual combination of characteristics, including

Correct AnswerverifiedShow Answer

The A. afarensis hand, wrist, and foot bones are indistinguishable from those of modern humans.

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Discuss the combinations of anatomical characteristics found in Sahelanthropus, Ororrin, and Ardipithecus. Based on these characteristics, should these genera be considered hominins?

Correct AnswerAnswered by ExamLex AISahelanthropus, Orrorin, and Ardipithecu...View AnswerShow Answer

Remains of early genus Homo have been found in both East and South Africa.

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The first Homo habilis fossils were found during the 1960's in

Correct AnswerverifiedShow Answer

What is the dating method that uses the principle that undisturbed underlying geologic deposits are older than overlying geologic deposits?

Correct AnswerverifiedShow Answer

The earliest australopith fossils come from

Correct AnswerverifiedShow Answer

The oldest possible hominin found to date has been given which genus name?

Correct AnswerverifiedShow Answer

_______ make the best samples for the K/Ar dating method.

Correct AnswerverifiedShow Answer

The earliest stone tools are dated to approximately

Correct AnswerverifiedShow Answer

Which of the following methods are not used to identify hominin fossil sites?

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There are several hypotheses that have b...
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In Chapter 8, we discussed the evolution...
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Sahelanthropus, Orrorin, and Ardipithecu...
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