Question 1

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. 
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.

Question 2

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

Accepted Answer

A) True 
 B)False

Question 3

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 4

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) 4.8 
A) 1.5 
B) 2.8 
C) 3.8 
D) 4.8

Question 5

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

Question 6

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. 
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.

Question 7

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 8

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

Accepted Answer

Plate tectonics theory maintains that th

Question 9

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

Question 10

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

Accepted Answer

A) True 
 B)False

Question 11

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) chloroplast 
A) protein-first hypothesis 
B) RNA-first hypothesis 
C) clay-catalyst hypothesis 
D) chloroplast

Question 12

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. 
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.

Question 13

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

Question 14

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) sound 
A) radioactivity 
B) electrical energy 
C) heat 
D) radiation from the sun 
E) sound

Question 15

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 Lyell 
A) Alfred Wegener 
B) Charles Darwin 
C) Alfred Russel Wallace 
D) Charles Lyell

Question 16

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. 
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.

Question 17

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

Exam 18: Origin and History of Life

Which event and date is mismatched?

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

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?

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

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

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

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.

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

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

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

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?

Which of the following mass extinction events is correct?

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

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

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

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

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?

A View of Life

Basic Chemistry

The Chemistry of Organic Molecules

Cell Structure and Function

Membrane Structure and Function

Metabolism: Energy and Enzymes

Photosynthesis

Cellular Respiration

The Cell Cycle and Cellular Reproduction

Meiosis and Sexual Reproduction

Mendelian Patterns of Inheritance

Molecular Biology of the Gene

Regulation of Gene Expression

Biotechnology and Genomics

Darwin and Evolution

How Populations Evolve

Speciation and Macroevolution

Taxonomy,systematics,and Phylogeny

Viruses,bacteria,and Archaea

Protist Evolution and Diversity

Fungi Evolution and Diversity

Plant Evolution and Diversity

Flowering Plants: Structure and Organization

Flowering Plants: Nutrition and Transport

Flowering Plants: Control of Growth Responses

Flowering Plants: Reproduction

Invertebrate Evolution

Vertebrate Evolution

Human Evolution

Animal Organization and Homeostasis

Circulation and Cardiovascular Systems

The Lymphatic and Immune Systems

Digestive Systems and Nutrition

Respiratory Systems

Body Fluid Regulation and Excretory Systems

Neurons and Nervous Systems

Sense Organs

Locomotion and Support Systems

Hormones and Endocrine Systems

Reproductive Systems

Animal Development and Aging

Behavioral Ecology

Population Ecology

Community and Ecosystem Ecology

Major Ecosystems of the Biosphere

Conservation of Biodiversity

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