Question 1

Humans and chimps are both able to

Accepted Answer

A)  communicate. 
B)  use tools and communicate. 
C)  walk upright. 
D)  walk upright and use tools. 
E)  use tools. 
A)  communicate. 
B)  use tools and communicate. 
C)  walk upright. 
D)  walk upright and use tools. 
E)  use tools.

Question 2

According to the evolutionary tree,humans share a common ancestor with other groups of apes.

Accepted Answer

A) True 
 B)False

Question 3

The Cambrian explosion refers to Earth's life history benchmark of

Accepted Answer

A)  development of the first multicellular organisms. 
B)  mass extinction of the nonavian dinosaurs. 
C)  origination of life, when the progenotes formed the first cells. 
D)  All of the answer choices are correct. 
E)  appearance of fossils for all major phyla of animals. 
A)  development of the first multicellular organisms. 
B)  mass extinction of the nonavian dinosaurs. 
C)  origination of life, when the progenotes formed the first cells. 
D)  All of the answer choices are correct. 
E)  appearance of fossils for all major phyla of animals.

Question 4

Natural selection would have favored progenotes that could use more diverse food sources.

Accepted Answer

A) True 
 B)False

Question 5

The first amphibians appeared during the _____ period.

Accepted Answer

A)  Cambrian 
B)  Silurian 
C)  Carboniferous 
D)  Ordovician 
E)  Devonian 
A)  Cambrian 
B)  Silurian 
C)  Carboniferous 
D)  Ordovician 
E)  Devonian

Question 6

For a span of 248 mya to 65 mya,the Mesozoic Era,in which dinosaurs appeared,dominated and became extinct,lasted approximately ___ of the geologic timescale.

Accepted Answer

A)  50% 
B)  7% 
C)  20% 
D)  15% 
E)  4% 
A)  50% 
B)  7% 
C)  20% 
D)  15% 
E)  4%

Question 7

Which scientist is given credit for proposing the endosymbiont theory?

Accepted Answer

A)  Lynn Margulis 
B)  Stanley Miller 
C)  Charles Darwin 
D)  Svante Arrenhius 
E)  Louis Pasteur 
A)  Lynn Margulis 
B)  Stanley Miller 
C)  Charles Darwin 
D)  Svante Arrenhius 
E)  Louis Pasteur

Question 8

The coding region of chimpanzee genes and human genes are 99% identical.

Accepted Answer

A) True 
 B)False

Question 9

The three groups in the primate lineage are

Accepted Answer

A)  monkeys, gibbons, and orangutans. 
B)  hominines, hominids, and hominoids. 
C)  chimpanzees, gorillas, and humans. 
D)  prosimians, monkeys, and hominoids. 
E)  gorillas, bonobos, and chimpanzees. 
A)  monkeys, gibbons, and orangutans. 
B)  hominines, hominids, and hominoids. 
C)  chimpanzees, gorillas, and humans. 
D)  prosimians, monkeys, and hominoids. 
E)  gorillas, bonobos, and chimpanzees.

Question 10

How is the ability of phospholipids to spontaneously form membranes when placed in water important in the origin of life on Earth?

Accepted Answer

A)  Membranes are used by cells to isolate their contents from the environment. 
B)  Membranes protect a cell from gases in the atmosphere. 
C)  Membranes protect a cell from high temperatures and pressures in the environment. 
D)  Membranes are used by cells to catalyze reactions. 
E)  Membranes are used by cells to store genetic information. 
A)  Membranes are used by cells to isolate their contents from the environment. 
B)  Membranes protect a cell from gases in the atmosphere. 
C)  Membranes protect a cell from high temperatures and pressures in the environment. 
D)  Membranes are used by cells to catalyze reactions. 
E)  Membranes are used by cells to store genetic information.

Question 11

News stories each year note the increase in carbon dioxide,from combustion of coal in electrical generating plants,or from use of petroleum fuels in vehicles.Most states require emissions quality tests to limit automobile emissions.The fuels used in cars,and the carbon dioxide cars emit,were originally

Accepted Answer

A)  carbon dioxide fixed by vascular and nonvascular plants during photosynthesis about 300 mya. 
B)  carbon in the tissues, decayed from dinosaurs after the Cretaceous mass extinction. 
C)  carbon dioxide trapped in the ocean and secreted into large coral reef structures, during the Mesozoic. 
D)  carbon dioxide released from volcanoes, and accumulating over centuries. 
E)  carbon dioxide trapped in rocks and compressed into oil and coal, during the Precambrian. 
A)  carbon dioxide fixed by vascular and nonvascular plants during photosynthesis about 300 mya. 
B)  carbon in the tissues, decayed from dinosaurs after the Cretaceous mass extinction. 
C)  carbon dioxide trapped in the ocean and secreted into large coral reef structures, during the Mesozoic. 
D)  carbon dioxide released from volcanoes, and accumulating over centuries. 
E)  carbon dioxide trapped in rocks and compressed into oil and coal, during the Precambrian.

Question 12

The last shared ancestor for today's cell types is thought to have arisen about _____ years ago.

Accepted Answer

A)  3 million 
B)  6 billion 
C)  4 billion 
D)  4 million 
E)  3 billion 
A)  3 million 
B)  6 billion 
C)  4 billion 
D)  4 million 
E)  3 billion

Question 13

The three periods of the Mesozoic era in sequence from most ancient to most recent are

Accepted Answer

A)  Cambrian, Ordovician, and Silurian. 
B)  Cretaceous, Jurassic, and Triassic. 
C)  Silurian, Ordovician, and Cambrian. 
D)  Permian, Triassic, and Jurassic. 
E)  Triassic, Jurassic, and Cretaceous. 
A)  Cambrian, Ordovician, and Silurian. 
B)  Cretaceous, Jurassic, and Triassic. 
C)  Silurian, Ordovician, and Cambrian. 
D)  Permian, Triassic, and Jurassic. 
E)  Triassic, Jurassic, and Cretaceous.

Question 14

Prior to the work of Li and others,scientists had estimated that Homo sapiens had lived in a limited African range at about 40,000 years ago.Migration took subpopulations away from this original area.Although speciation did not occur in this time,

Accepted Answer

A)  DNA sequence data indicated that Homo sapiens subpopulations showed little natural selection of genotypes and phenotypes. 
B)  None of the answer choices are correct. 
C)  DNA sequence data indicated that gradualism dominated the evolutionary history of humans in the last 40,000 years. 
D)  DNA sequence data showed that people from Africa, Asia, and Europe actively interbred and maintained a constant gene pool. 
E)  DNA sequence data indicated a rapid adaptive radiation, leading to microevolution of the gene pools. 
A)  DNA sequence data indicated that Homo sapiens subpopulations showed little natural selection of genotypes and phenotypes. 
B)  None of the answer choices are correct. 
C)  DNA sequence data indicated that gradualism dominated the evolutionary history of humans in the last 40,000 years. 
D)  DNA sequence data showed that people from Africa, Asia, and Europe actively interbred and maintained a constant gene pool. 
E)  DNA sequence data indicated a rapid adaptive radiation, leading to microevolution of the gene pools.

Question 15

The two major extinctions of living species occurred during the Mesozoic era.

Accepted Answer

A) True 
 B)False

Question 16

The three periods of the Mesozoic era are the Triassic,Jurassic,and Cretaceous.

Accepted Answer

A) True 
 B)False

Question 17

Ediacaran organisms lived during the _____ period.

Accepted Answer

A)  Precambrian 
B)  Jurassic 
C)  Devonian 
D)  Cambrian 
E)  Silurian 
A)  Precambrian 
B)  Jurassic 
C)  Devonian 
D)  Cambrian 
E)  Silurian

Question 18

Advantage (advantages)of bipedalism include

Accepted Answer

A)  All of the answer choices are correct. 
B)  increased brain size. 
C)  freeing of hands to carry objects and use tools. 
D)  ability to run faster. 
E)  movement through the treetops and clinging to vines. 
A)  All of the answer choices are correct. 
B)  increased brain size. 
C)  freeing of hands to carry objects and use tools. 
D)  ability to run faster. 
E)  movement through the treetops and clinging to vines.

Question 19

Hominids include

Accepted Answer

A)  gorillas. 
B)  humans. 
C)  chimpanzees. 
D)  orangutans. 
E)  All of the answer choices are correct. 
A)  gorillas. 
B)  humans. 
C)  chimpanzees. 
D)  orangutans. 
E)  All of the answer choices are correct.

Question 20

The first flowering plants,first true mammals,and first true frogs appeared during the _____ period.

Accepted Answer

A)  Cambrian 
B)  Triassic 
C)  Permian 
D)  Cretaceous 
E)  Jurassic 
A)  Cambrian 
B)  Triassic 
C)  Permian 
D)  Cretaceous 
E)  Jurassic

Exam 15: The Origin and History of Life

Humans and chimps are both able to

According to the evolutionary tree,humans share a common ancestor with other groups of apes.

The Cambrian explosion refers to Earth's life history benchmark of

Natural selection would have favored progenotes that could use more diverse food sources.

The first amphibians appeared during the _____ period.

For a span of 248 mya to 65 mya,the Mesozoic Era,in which dinosaurs appeared,dominated and became extinct,lasted approximately ___ of the geologic timescale.

Which scientist is given credit for proposing the endosymbiont theory?

The coding region of chimpanzee genes and human genes are 99% identical.

The three groups in the primate lineage are

How is the ability of phospholipids to spontaneously form membranes when placed in water important in the origin of life on Earth?

The last shared ancestor for today's cell types is thought to have arisen about _____ years ago.

The three periods of the Mesozoic era in sequence from most ancient to most recent are

Prior to the work of Li and others,scientists had estimated that Homo sapiens had lived in a limited African range at about 40,000 years ago.Migration took subpopulations away from this original area.Although speciation did not occur in this time,

The two major extinctions of living species occurred during the Mesozoic era.

The three periods of the Mesozoic era are the Triassic,Jurassic,and Cretaceous.

Ediacaran organisms lived during the _____ period.

Advantage (advantages)of bipedalism include

Hominids include

The first flowering plants,first true mammals,and first true frogs appeared during the _____ period.

The Scientific Study of Life

The Chemistry of Life

Cell Structure and Function

The Energy of Life

Photosynthesis

How Cells Release Energy

DNA Structure and Gene Function

DNA Replication, mitosis, and the Cell Cycle

Sexual Reproduction and Meiosis

Patterns of Inheritance

DNA Technology

The Forces of Evolutionary Change

Evidence of Evolution

Speciation and Extinction

Viruses

Bacteria and Archaea

Protists

Plants

Fungi

Animals

Plant Form and Function

Plant Nutrition and Transport

Reproduction and Development of Flowering Plants

Animal Tissues and Organ Systems

The Nervous System

The Senses

The Endocrine System

The Skeletal and Muscular Systems

The Circulatory System

The Respiratory System

Digestion and Nutrition

Regulation of Temperature and Body Fluids

The Immune System

Animal Reproduction and Development

Animal Behavior

Population Ecology

Communities and Ecosystems

Biomes

Preserving Biodiversity

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