Question 1

Which statement regarding cell reproduction is true?

Accepted Answer

A)   DNA replicates before cell division occurs.
B)   Cell division occurs prior to DNA replication.
C)   DNA replication and cell division occur at the same time.
D)   There is no DNA replication during cell reproduction.
E)   There is no cell division during cell reproduction.F) B) and C)
G) D) and E)

Question 2

Human characteristics did not evolve all at one time.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following is not an important anatomical feature for determining if a fossil is a hominin?

Accepted Answer

A)   absence of sharp canines
B)   bipedal posture
C)   flat face
D)   brain size
E)   absence of a chinF) A) and C)
G) B) and E)

Question 4

According to evolutionary theory humans are descended from extant apes.

Accepted Answer

A) True 
 B)False

Question 5

Miller's experiment showed that life could arise via chemical evolution.

Accepted Answer

A) True 
 B)False

Question 6

What happens in chimps and humans when the snout is shortened considerably?

Accepted Answer

A)   The sense of smell is dramatically reduced.
B)   The eyes move to the front and allow for stereoscopic vision.
C)   This allows for the development of a chin.
D)   Canine teeth are lost.
E)   Vocalization becomes possible.F) A) and C)
G) A) and E)

Question 7

Which of the following is not a characteristic of the Neandertals?

Accepted Answer

A)   They had massive brow ridges.
B)   They are considered H. sapiens.
C)   The pubic bone was long compared to ours.
D)   The brain size was larger than ours.
E)   They were heavily muscled.F) A) and D)
G) A) and C)

Question 8

The early Earth's atmosphere was not the same as it is today.

Accepted Answer

A) True 
 B)False

Question 9

In the out-of-Africa hypothesis,there was interbreeding between the ancestors of modern humans on three continents.

Accepted Answer

A) True 
 B)False

Question 10

What energy source was used by Stanley Miller in his 1953 experiment to replicate the Earth's early environment?

Accepted Answer

A)   electric spark
B)   heat
C)   ultraviolet radiation
D)   gamma radiation
E)   sunlightF) A) and B)
G) B) and C)

Question 11

What is a characteristic that makes an organism able to survive and reproduce in its environment?

Accepted Answer

A)   culture
B)   selection
C)   analogy
D)   adaptation
E)   homologyF) C) and D)
G) B) and E)

Question 12

There are two important aspects to biological evolution: descent from a common ancestor and the fossil record.

Accepted Answer

A) True 
 B)False

Question 13

Which anatomical feature is found in humans that is absent in chimpanzees?

Accepted Answer

A)   arched foot
B)   pelvis is long and narrow
C)   femurs angle out at the knees
D)   there is a slight curve in the spine
E)   the knee supports very little weightF) A) and D)
G) C) and D)

Question 14

List and explain the elements of the natural selection process.

Accepted Answer

1.Variation exists within a population.P...

Question 15

Which piece of evidence would strongly support the RNA-first hypothesis?

Accepted Answer

A)   finding a protocell that could carry on metabolism as well as reproduce
B)   discovering a way to make RNA more stable than DNA
C)   finding a mechanism whereby proteins could assemble DNA out of free nucleotides
D)   being able to build microspheres that contain only protein and RNA
E)   finding a living organism that uses RNA as its genetic materialF) A) and B)
G) A) and E)

Question 16

Describe the four stages of chemical and biological evolution.

Accepted Answer

Stage 1: Small organic molecules evolved...

Question 17

The early atmosphere of Earth consisted mainly of

Accepted Answer

A)   hydrogen, oxygen, and carbon dioxide.
B)   oxygen, water vapor, and carbon monoxide.
C)   water vapor, nitrogen, and carbon dioxide.
D)   hydrogen, carbon monoxide, and nitrogen.
E)   water vapor, hydrogen, and carbon dioxide.F) B) and E)
G) A) and E)

Question 18

Which statement is accurate if the first true cell arose by the RNA-first hypothesis?

Accepted Answer

A)   The first cell had RNA genes that could have specified protein synthesis.
B)   Proteins in the protocell would have evolved the ability to synthesize DNA.
C)   RNA genes replicated because of the presence of proteins.
D)   All of these statements support the RNA-first hypothesis.
E)   None of these statements support the RNA-first hypothesis.F) A) and E)
G) C) and D)

Question 19

What type of rock preserves fossils well?

Accepted Answer

A)   sedimentary rock
B)   igneous rock
C)   metamorphic rock
D)   gravel
E)   graniteF) None of the above
G) B) and E)

Question 20

What is the earliest fossil hominin?

Accepted Answer

A)   Sahelanthropus tchadensis
B)   Australopithecus robustus
C)   Australopithecus africanus
D)   Ardipithecus kadabba
E)   Ardipithecus ramidusF) A) and E)
G) B) and E)

Exam 23: Human Evolution

Which of the following is not a characteristic of the Neandertals?

Correct AnswerverifiedShow Answer

According to evolutionary theory humans are descended from extant apes.

Correct AnswerverifiedShow Answer

Which statement is accurate if the first true cell arose by the RNA-first hypothesis?

Correct AnswerverifiedShow Answer

Human characteristics did not evolve all at one time.

Correct AnswerverifiedShow Answer

The early Earth's atmosphere was not the same as it is today.

Correct AnswerverifiedShow Answer

There are two important aspects to biological evolution: descent from a common ancestor and the fossil record.

Correct AnswerverifiedShow Answer

Describe the four stages of chemical and biological evolution.

Correct AnswerverifiedStage 1: Small organic molecules evolved...View AnswerShow Answer

Miller's experiment showed that life could arise via chemical evolution.

Correct AnswerverifiedShow Answer

Which of the following is not an important anatomical feature for determining if a fossil is a hominin?

Correct AnswerverifiedShow Answer

Which statement regarding cell reproduction is true?

Correct AnswerverifiedShow Answer

Which anatomical feature is found in humans that is absent in chimpanzees?

Correct AnswerverifiedShow Answer

What is a characteristic that makes an organism able to survive and reproduce in its environment?

Correct AnswerverifiedShow Answer

List and explain the elements of the natural selection process.

Correct Answerverified1.Variation exists within a population.P...View AnswerShow Answer

What happens in chimps and humans when the snout is shortened considerably?

Correct AnswerverifiedShow Answer

In the out-of-Africa hypothesis,there was interbreeding between the ancestors of modern humans on three continents.

Correct AnswerverifiedShow Answer

What is the earliest fossil hominin?

Correct AnswerverifiedShow Answer

The early atmosphere of Earth consisted mainly of

Correct AnswerverifiedShow Answer

What type of rock preserves fossils well?

Correct AnswerverifiedShow Answer

Which piece of evidence would strongly support the RNA-first hypothesis?

Correct AnswerverifiedShow Answer

What energy source was used by Stanley Miller in his 1953 experiment to replicate the Earth's early environment?

Correct AnswerverifiedShow Answer

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Stage 1: Small organic molecules evolved...
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1.Variation exists within a population.P...
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