Question 1

Which of the following major divisions of geologic time is mismatched with the organisms that flourished during that time period?

Accepted Answer

A)  Carboniferous Period-Age of Amphibians
B)  Mesozoic Era-Age of Reptiles
C)  Cambrian Period-Age of Fish
D)  Holocene epoch-The Age of ManE) A) and B)
F) C) and D)

Question 2

Fossils of prokaryotic cells are dated as far back as approximately ________ billion years ago.

Accepted Answer

A)  1.5
B)  2.8
C)  3.8
D)  4.8E) None of the above
F) All of the above

Question 3

The first person who proposed that small organic molecules could have arisen by chemical evolution was

Accepted Answer

A)  Stanley Miller.
B)  Graham Cairns-Smith.
C)  Thomas Cech.
D)  Aleksander Oparin.
E)  Sidney Fox.F) A) and C)
G) B) and E)

Question 4

Which hypothesis states that the synthesis of DNA or RNA from the small molecules in the ocean would have come after the evolution of the plasma membrane and enzymes?

Accepted Answer

A)  protein-first hypothesis
B)  RNA-first hypothesis
C)  clay-catalyst hypothesis
D)  chloroplastE) B) and C)
F) A) and D)

Question 5

Which of the following forms of energy was NOT involved in the production of large organic molecules in the primitive reducing atmosphere?

Accepted Answer

A)  radioactivity
B)  electrical energy
C)  heat
D)  radiation from the sun
E)  soundF) All of the above
G) A) and B)

Question 6

Organisms today are living in the Pleistocene epoch of the Cenozoic era.

Accepted Answer

A) True 
 B)False

Question 7

Three fossils are found in undisturbed layers of rock,or strata.Fossil A is closest to the Earth's surface and Fossil C was deeper than Fossil B.Given this limited data,what assumptions can you make about these fossils?

Accepted Answer

Fossils found deeper within the Earth's ...

Question 8

Evidence supports the theory of mass extinctions being caused by crater-forming meteorites that initiated climatic changes.

Accepted Answer

A) True 
 B)False

Question 9

Which piece of evidence best supports the endosymbiotic theory of organelle evolution?

Accepted Answer

A)  The outer membrane of a mitochondrion and chloroplast resembles a eukaryotic cell while the inner membrane resembles that of a bacterial cell.
B)  The inner membrane of a mitochondrion and chloroplast resembles a eukaryotic cell while the outer membrane resembles that of a bacterial cell.
C)  Both mitochondria and chloroplasts divide by mitosis.
D)  Mitochondria and chloroplasts are much larger than present day bacteria.E) A) and B)
F) A) and C)

Question 10

Who was the individual who proposed the hypothesis of continental drift during the 1920s?

Accepted Answer

A)  Alfred Wegener
B)  Charles Darwin
C)  Alfred Russel Wallace
D)  Charles LyellE) A) and B)
F) All of the above

Question 11

List in order of appearance the four stages of the origin of life and explain what was necessary to occur in order for life to have evolved in this fashion.

Accepted Answer

Answers may vary a bit but should includ...

Question 12

The term "reducing atmosphere" for the early Earth means that the atmosphere

Accepted Answer

A)  was much thinner around the surface of the Earth than now.
B)  contained only two or three kinds of gases.
C)  contained little or no free oxygen.
D)  contained little or no free nitrogen.
E)  contained little or no carbon dioxide.F) C) and D)
G) B) and C)

Question 13

Describe plate tectonics and why it is important in the evolution of life forms.

Accepted Answer

Plate tectonics theory maintains that th...

Question 14

Miller and Urey's experiment provided support for what hypothesis? In what way did the discovery of hydrothermal vents alleviate concern about the validity of their simulation of the Earth's primitive atmosphere?

Accepted Answer

Miller and Urey's experimental findings ...

Question 15

Biological evolution differs from chemical evolution in that it would have been possible only after the development of

Accepted Answer

A)  true cells.
B)  nucleic acids.
C)  enzymes.
D)  a metabolic pathway.E) A) and B)
F) A) and C)

Question 16

Which event and date is mismatched?

Accepted Answer

A)  origin of multicellular organisms-650 million years ago
B)  origin of life-4.8 billion years ago
C)  origin of eukaryotic cells-2.2 billion years ago
D)  All the choices are incorrect.E) A) and C)
F) A) and B)

Question 17

Which of the following mass extinction events is correct?

Accepted Answer

A)  During the Permian period,over 90% of the species disappeared due to an excess of carbon dioxide in the atmosphere.
B)  At the end of the Ordovician period,over 90% of the species went extinct due to a meterorite impacting the Earth's surface and causing a cloud of ash to reduce solar exposure for several weeks.
C)  At the end of the Cretaceous period,over 90% of the species went extinct due to a meteorite impacting the Earth's surface and causing a cloud of ash to reduce solar exposure for several weeks.
D)  At the end of the Devonian period,70% of the terrestrial vertebrates went extinct when Gondwana drifted back towards the South Pole.E) B) and D)
F) B) and C)

Exam 18: Origin and History of Life

The first person who proposed that small organic molecules could have arisen by chemical evolution was

Correct Answer
verified

Describe plate tectonics and why it is important in the evolution of life forms.

Correct Answer
verified
Plate tectonics theory maintains that th...
View Answer

Biological evolution differs from chemical evolution in that it would have been possible only after the development of

Correct Answer
verified

Which of the following major divisions of geologic time is mismatched with the organisms that flourished during that time period?

Correct Answer
verified

Organisms today are living in the Pleistocene epoch of the Cenozoic era.

Correct Answer
verified

Miller and Urey's experiment provided support for what hypothesis? In what way did the discovery of hydrothermal vents alleviate concern about the validity of their simulation of the Earth's primitive atmosphere?

Correct Answer
verified
Miller and Urey's experimental findings ...
View Answer

Which of the following mass extinction events is correct?

Correct Answer
verified

Which hypothesis states that the synthesis of DNA or RNA from the small molecules in the ocean would have come after the evolution of the plasma membrane and enzymes?

Correct Answer
verified

Three fossils are found in undisturbed layers of rock,or strata.Fossil A is closest to the Earth's surface and Fossil C was deeper than Fossil B.Given this limited data,what assumptions can you make about these fossils?

Correct Answer
verified
Fossils found deeper within the Earth's ...
View Answer

Fossils of prokaryotic cells are dated as far back as approximately ________ billion years ago.

Correct Answer
verified

The term "reducing atmosphere" for the early Earth means that the atmosphere

Correct Answer
verified

Which event and date is mismatched?

Correct Answer
verified

Which piece of evidence best supports the endosymbiotic theory of organelle evolution?

Correct Answer
verified

Evidence supports the theory of mass extinctions being caused by crater-forming meteorites that initiated climatic changes.

Correct Answer
verified

Which of the following forms of energy was NOT involved in the production of large organic molecules in the primitive reducing atmosphere?

Correct Answer
verified

Who was the individual who proposed the hypothesis of continental drift during the 1920s?

Correct Answer
verified

List in order of appearance the four stages of the origin of life and explain what was necessary to occur in order for life to have evolved in this fashion.

Correct Answer
verified
Answers may vary a bit but should includ...
View Answer

Exam 18: Origin and History of Life

The first person who proposed that small organic molecules could have arisen by chemical evolution was

Correct AnswerverifiedShow Answer

Describe plate tectonics and why it is important in the evolution of life forms.

Correct AnswerverifiedPlate tectonics theory maintains that th...View AnswerShow Answer

Biological evolution differs from chemical evolution in that it would have been possible only after the development of

Correct AnswerverifiedShow Answer

Which of the following major divisions of geologic time is mismatched with the organisms that flourished during that time period?

Correct AnswerverifiedShow Answer

Organisms today are living in the Pleistocene epoch of the Cenozoic era.

Correct AnswerverifiedShow Answer

Miller and Urey's experiment provided support for what hypothesis? In what way did the discovery of hydrothermal vents alleviate concern about the validity of their simulation of the Earth's primitive atmosphere?

Correct AnswerverifiedMiller and Urey's experimental findings ...View AnswerShow Answer

Which of the following mass extinction events is correct?

Correct AnswerverifiedShow Answer

Which hypothesis states that the synthesis of DNA or RNA from the small molecules in the ocean would have come after the evolution of the plasma membrane and enzymes?

Correct AnswerverifiedShow Answer

Three fossils are found in undisturbed layers of rock,or strata.Fossil A is closest to the Earth's surface and Fossil C was deeper than Fossil B.Given this limited data,what assumptions can you make about these fossils?

Correct AnswerverifiedFossils found deeper within the Earth's ...View AnswerShow Answer

Fossils of prokaryotic cells are dated as far back as approximately ________ billion years ago.

Correct AnswerverifiedShow Answer

The term "reducing atmosphere" for the early Earth means that the atmosphere

Correct AnswerverifiedShow Answer

Which event and date is mismatched?

Correct AnswerverifiedShow Answer

Which piece of evidence best supports the endosymbiotic theory of organelle evolution?

Correct AnswerverifiedShow Answer

Evidence supports the theory of mass extinctions being caused by crater-forming meteorites that initiated climatic changes.

Correct AnswerverifiedShow Answer

Which of the following forms of energy was NOT involved in the production of large organic molecules in the primitive reducing atmosphere?

Correct AnswerverifiedShow Answer

Who was the individual who proposed the hypothesis of continental drift during the 1920s?

Correct AnswerverifiedShow Answer

List in order of appearance the four stages of the origin of life and explain what was necessary to occur in order for life to have evolved in this fashion.

Correct AnswerverifiedAnswers may vary a bit but should includ...View AnswerShow Answer

Correct Answer
verified

Correct Answer
verified
Plate tectonics theory maintains that th...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Miller and Urey's experimental findings ...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Fossils found deeper within the Earth's ...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Answers may vary a bit but should includ...
View Answer