Question 1

Imagine the discovery of an undescribed nonphotosynthetic,multicellular organism.To determine whether it is a(n) ________,it would need to be examined microscopically to determine if its cells ________.

Accepted Answer

A)   animal or fungi; have cell walls
B)   animal or plant; have nuclei
C)   plant or fungi; have cell walls
D)   animal or fungi; contain DNA

Question 2

In order to best determine relationships among different organisms,scientists examine

Accepted Answer

A)   DNA and behavior.
B)   DNA and body structures.
C)   body structures and behavior.
D)   DNA,body structures,and behavior.

Question 3

Canis lupus is the scientific name for wolves.Canis refers to the ________ name.

Accepted Answer

The answer of Canis lupus is the scientific name for...

Question 4

Branches on the evolutionary tree are sometimes rearranged by scientists because

Accepted Answer

A)   new,related fossils or new information about existing fossils changes the understanding of the relationships.
B)   new,unrelated fossils are intentionally put on the tree with existing fossils.
C)   scientists are trying to prove a nonexistent relationship between species.
D)   scientists have proven a relationship between two or more species.

Question 5

Explain two ways that mass extinctions can have a profound impact on evolved biodiversity in the ecosystem.

Accepted Answer

One way that a mass extinction impacts b...

Question 6

When making sourdough bread,bakers use a combination of microorganisms to produce the sour flavor and to leaven the dough before baking.The organisms typically used to produce the lactic acid that give sourdough its distinctive flavor are very small rod-shaped prokaryotic organisms known generally as Lactobacilli.These microorganisms are from the kingdom ________.The other organisms that produce the leavening effect are nonphotosynthetic eukaryotes,have cell walls,absorb their nutrients from their environment,and (in this case) are very tolerant of acidic environments.These microorganisms are from the kingdom ________.

Accepted Answer

A)   Bacteria; Fungi
B)   Plantae; Fungi
C)   Animalia; Bacteria
D)   Plantae; Bacteria

Question 7

The current classification system used by biologists is

Accepted Answer

A)   complex and unchanging.
B)   universally accepted by all biologists.
C)   based on four generalized types of living organisms: Bacteria,Archaea,Eukarya,and Protista.
D)   updated and revised whenever new information becomes available.

Question 8

Roughly 360 mya at the end of the ________ period,a mass extinction wiped out 30 percent of animal families,including many fishes and trilobites.The terrestrial animals at this time would have included ________.

Accepted Answer

A)   Devonian; many insects,other invertebrates,and amphibians
B)   Cambrian; dinosaurs and mammals
C)   Silurian; mammals and humans
D)   Carboniferous; reptiles and humans

Question 9

Evolutionary tree diagrams representing the relationships between various organisms can be drawn only when those organisms share a

Accepted Answer

A)   common cellular metabolism.
B)   distinct lineage.
C)   common cellular organization.
D)   common ancestor.

Question 10

The emergence of each new branch on the evolutionary tree represents

Accepted Answer

A)   the addition of a new Linnaean taxon within that lineage.
B)   the completion of a generation for that particular organism.
C)   the introduction of the most important features of a group.
D)   a common ancestor and the introduction of a new shared derived feature.

Question 11

Any two groups of organisms will have ________ most recent common ancestor(s) .

Accepted Answer

A)   two
B)   no more than four
C)   only one
D)   as many as 16

Question 12

The ________ feature occurs between each branch on an evolutionary tree.

Accepted Answer

A)   evolution of a new derived
B)   loss of a derived
C)   evolution of a shared ancestral
D)   evolution of a convergent

Question 13

The first eukaryotes evolved approximately ________ years ago.

Accepted Answer

A)   200,000
B)   200 million
C)   2 billion
D)   2 trillion

Question 14

The appearance of eukaryotes may have been delayed until more ________ accumulated in Earth's atmosphere.

Accepted Answer

A)   oxygen
B)   nitrogen
C)   carbon
D)   sulfur

Question 15

According to the tree below,which of the following combinations of organisms are MOST closely related?

Accepted Answer

A)   amoebas and plants
B)   animals and fungi
C)   plants and fungi
D)   fungi and amoebas

Question 16

How was the distribution of humans (after they evolved) affected by continental drift?

Accepted Answer

A)   The supercontinent of Pangaea had not yet split up before humans evolved.This made it very easy for humans to travel over the entire landmass of Earth.
B)   The supercontinent of Pangaea had already begun to split up,but the continents were still very close together,making it easy for humans to travel from one continent to another.
C)   The supercontinent of Pangaea had not yet split up before humans evolved.This had little impact on the distribution of humans because they did not travel until the 1400s.
D)   The supercontinent of Pangaea split apart and the resulting continents were in their present-day locations by the time modern humans evolved.This would have slowed the distribution of humans until they developed ways of easily traveling the oceans.

Question 17

Resolving the relationship between the various kingdoms has been challenging because species often resemble one another.For example,the kingdom ________ contains some organisms that are animal-like and others that are plant-like.

Accepted Answer

A)   Bacteria
B)   Fungi
C)   Archaea
D)   Protista

Question 18

The domain ________ encompasses the traditional four kingdoms of Protista,Plantae,Fungi,and Animalia.

Accepted Answer

The answer of The domain ________ encompasses the traditional four...

Question 19

Although it is costly to produce fruit,the large number of fruit-producing plant species attests to its success as an evolutionary adaptation.In what way is fruit production helpful to plants?

Accepted Answer

A)   Fruits attract pollinators like insects and birds to move pollen between different plants.
B)   Fruit toxins can discourage potential consumers from eating the plant.
C)   Plants can store energy in fruits during summer and then later recover the energy during winter,when the fruit decomposes.
D)   Consumers eating fruits also eat seeds that,when not digested,can be deposited far from the parent plant and increase the range of that plant species.

Question 20

Neighboring plant or fungi cells share a common cell wall,making multicellularity relatively simple.How do animal cells remain connected to one another?

Accepted Answer

A)   Animal cells share a common plasma membrane rather than a common cell wall.
B)   Long interconnecting fibers extend from the nucleus of one cell to the nucleus of an adjacent cell.
C)   Most animals produce a felt-like extracellular matrix to which their cells can attach.
D)   Animal cells are connected to each other by the cytoskeleton.

Exam 14: The History of Life

Any two groups of organisms will have ________ most recent common ancestor(s) .

Correct Answer
verified

The ________ feature occurs between each branch on an evolutionary tree.

Correct Answer
verified

Evolutionary tree diagrams representing the relationships between various organisms can be drawn only when those organisms share a

Correct Answer
verified

Correct Answer
verified

The appearance of eukaryotes may have been delayed until more ________ accumulated in Earth's atmosphere.

Correct Answer
verified

Branches on the evolutionary tree are sometimes rearranged by scientists because

Correct Answer
verified

The domain ________ encompasses the traditional four kingdoms of Protista,Plantae,Fungi,and Animalia.

Correct Answer
verified

Roughly 360 mya at the end of the period,a mass extinction wiped out 30 percent of animal families,including many fishes and trilobites.The terrestrial animals at this time would have included .

Correct Answer
verified

In order to best determine relationships among different organisms,scientists examine

Correct Answer
verified

Explain two ways that mass extinctions can have a profound impact on evolved biodiversity in the ecosystem.

Correct Answer
verified
One way that a mass extinction impacts b...
View Answer

According to the tree below,which of the following combinations of organisms are MOST closely related?

Correct Answer
verified

The emergence of each new branch on the evolutionary tree represents

Correct Answer
verified

How was the distribution of humans (after they evolved) affected by continental drift?

Correct Answer
verified

Imagine the discovery of an undescribed nonphotosynthetic,multicellular organism.To determine whether it is a(n) ,it would need to be examined microscopically to determine if its cells .

Correct Answer
verified

Canis lupus is the scientific name for wolves.Canis refers to the ________ name.

Correct Answer
verified

Although it is costly to produce fruit,the large number of fruit-producing plant species attests to its success as an evolutionary adaptation.In what way is fruit production helpful to plants?

Correct Answer
verified

The first eukaryotes evolved approximately ________ years ago.

Correct Answer
verified

Resolving the relationship between the various kingdoms has been challenging because species often resemble one another.For example,the kingdom ________ contains some organisms that are animal-like and others that are plant-like.

Correct Answer
verified

Neighboring plant or fungi cells share a common cell wall,making multicellularity relatively simple.How do animal cells remain connected to one another?

Correct Answer
verified

The current classification system used by biologists is

Correct Answer
verified

Exam 14: The History of Life

Any two groups of organisms will have ________ most recent common ancestor(s) .

Correct AnswerverifiedShow Answer

The ________ feature occurs between each branch on an evolutionary tree.

Correct AnswerverifiedShow Answer

Evolutionary tree diagrams representing the relationships between various organisms can be drawn only when those organisms share a

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

The appearance of eukaryotes may have been delayed until more ________ accumulated in Earth's atmosphere.

Correct AnswerverifiedShow Answer

Branches on the evolutionary tree are sometimes rearranged by scientists because

Correct AnswerverifiedShow Answer

The domain ________ encompasses the traditional four kingdoms of Protista,Plantae,Fungi,and Animalia.

Correct AnswerverifiedShow Answer

Roughly 360 mya at the end of the ________ period,a mass extinction wiped out 30 percent of animal families,including many fishes and trilobites.The terrestrial animals at this time would have included ________.

Correct AnswerverifiedShow Answer

In order to best determine relationships among different organisms,scientists examine

Correct AnswerverifiedShow Answer

Explain two ways that mass extinctions can have a profound impact on evolved biodiversity in the ecosystem.

Correct AnswerverifiedOne way that a mass extinction impacts b...View AnswerShow Answer

According to the tree below,which of the following combinations of organisms are MOST closely related?

Correct AnswerverifiedShow Answer

The emergence of each new branch on the evolutionary tree represents

Correct AnswerverifiedShow Answer

How was the distribution of humans (after they evolved) affected by continental drift?

Correct AnswerverifiedShow Answer

Imagine the discovery of an undescribed nonphotosynthetic,multicellular organism.To determine whether it is a(n) ________,it would need to be examined microscopically to determine if its cells ________.

Correct AnswerverifiedShow Answer

Canis lupus is the scientific name for wolves.Canis refers to the ________ name.

Correct AnswerverifiedShow Answer

Although it is costly to produce fruit,the large number of fruit-producing plant species attests to its success as an evolutionary adaptation.In what way is fruit production helpful to plants?

Correct AnswerverifiedShow Answer

The first eukaryotes evolved approximately ________ years ago.

Correct AnswerverifiedShow Answer

Resolving the relationship between the various kingdoms has been challenging because species often resemble one another.For example,the kingdom ________ contains some organisms that are animal-like and others that are plant-like.

Correct AnswerverifiedShow Answer

Neighboring plant or fungi cells share a common cell wall,making multicellularity relatively simple.How do animal cells remain connected to one another?

Correct AnswerverifiedShow Answer

The current classification system used by biologists is

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
verified

Roughly 360 mya at the end of the period,a mass extinction wiped out 30 percent of animal families,including many fishes and trilobites.The terrestrial animals at this time would have included .

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
One way that a mass extinction impacts b...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Imagine the discovery of an undescribed nonphotosynthetic,multicellular organism.To determine whether it is a(n) ,it would need to be examined microscopically to determine if its cells .

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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