Filters
Question type
Study Flashcards

Binomial nomenclature was devised by Carolus Linnaeus in the 18th century.Which of the following scientific names is written correctly?


A) Panthera pardus
B) Panthera Tigris
C) Taxidea taxus
D) canis latrans
E) Ursus Maritimus

F) A) and B)
G) B) and D)

Correct Answer

verifed

verified

The term homoplasy is most applicable to which of the following features?


A) the legless condition found in various lineages of extant lizards
B) the five-digit condition of human hands and bat wings
C) the β hemoglobin genes of mice and of humans
D) the fur that covers Australian moles and North American moles
E) the bones of bat forelimbs and the bones of bird forelimbs

F) A) and B)
G) C) and D)

Correct Answer

verifed

verified

A monophyletic group


A) is the basal taxon.
B) includes the groups that form the nodes on a phylogenetic tree.
C) is an ancestral species and includes all of its descendants.
D) is an ancestral species and includes some of its descendants.
E) includes species that show convergent evolution.

F) A) and D)
G) D) and E)

Correct Answer

verifed

verified

-The best classification system is that which most closely A) unites organisms that possess similar morphologies. B) conforms to traditional, Linnaean taxonomic practices. C) reflects evolutionary history. D) reflects the basic separation of prokaryotes from eukaryotes. -The best classification system is that which most closely


A) unites organisms that possess similar morphologies.
B) conforms to traditional, Linnaean taxonomic practices.
C) reflects evolutionary history.
D) reflects the basic separation of prokaryotes from eukaryotes.

E) A) and D)
F) A) and C)

Correct Answer

verifed

verified

C

Members of which kingdom have cell walls and are all heterotrophic?


A) Plantae
B) Fungi
C) Animalia
D) Protista
E) Monera

F) A) and B)
G) None of the above

Correct Answer

verifed

verified

Which of the following pairs are the best examples of homologous structures?


A) bones in the bat wing and bones in the human forelimb
B) owl wing and hornet wing
C) bat wing and bird wing
D) eyelessness in the Australian mole and eyelessness in the North American mole

E) C) and D)
F) All of the above

Correct Answer

verifed

verified

The next questions refer to the following table,which compares the percent sequence homology of four different parts (two introns and two exons) of a gene that is found in five different eukaryotic species.Each part is numbered to indicate its distance from the promoter (e.g.,Intron I is the one closest to the promoter) .The data reported for species A were obtained by comparing DNA from one member of species A to another member of species A. % Sequence Homology The next questions refer to the following table,which compares the percent sequence homology of four different parts (two introns and two exons) of a gene that is found in five different eukaryotic species.Each part is numbered to indicate its distance from the promoter (e.g.,Intron I is the one closest to the promoter) .The data reported for species A were obtained by comparing DNA from one member of species A to another member of species A. % Sequence Homology -Based on the tabular data,and assuming that time advances vertically,which cladogram (a type of phylogenetic tree) is the most likely depiction of the evolutionary relationships among these five species? A) B) C) D) -Based on the tabular data,and assuming that time advances vertically,which cladogram (a type of phylogenetic tree) is the most likely depiction of the evolutionary relationships among these five species?


A) The next questions refer to the following table,which compares the percent sequence homology of four different parts (two introns and two exons) of a gene that is found in five different eukaryotic species.Each part is numbered to indicate its distance from the promoter (e.g.,Intron I is the one closest to the promoter) .The data reported for species A were obtained by comparing DNA from one member of species A to another member of species A. % Sequence Homology -Based on the tabular data,and assuming that time advances vertically,which cladogram (a type of phylogenetic tree) is the most likely depiction of the evolutionary relationships among these five species? A) B) C) D)
B) The next questions refer to the following table,which compares the percent sequence homology of four different parts (two introns and two exons) of a gene that is found in five different eukaryotic species.Each part is numbered to indicate its distance from the promoter (e.g.,Intron I is the one closest to the promoter) .The data reported for species A were obtained by comparing DNA from one member of species A to another member of species A. % Sequence Homology -Based on the tabular data,and assuming that time advances vertically,which cladogram (a type of phylogenetic tree) is the most likely depiction of the evolutionary relationships among these five species? A) B) C) D)
C) The next questions refer to the following table,which compares the percent sequence homology of four different parts (two introns and two exons) of a gene that is found in five different eukaryotic species.Each part is numbered to indicate its distance from the promoter (e.g.,Intron I is the one closest to the promoter) .The data reported for species A were obtained by comparing DNA from one member of species A to another member of species A. % Sequence Homology -Based on the tabular data,and assuming that time advances vertically,which cladogram (a type of phylogenetic tree) is the most likely depiction of the evolutionary relationships among these five species? A) B) C) D)
D) The next questions refer to the following table,which compares the percent sequence homology of four different parts (two introns and two exons) of a gene that is found in five different eukaryotic species.Each part is numbered to indicate its distance from the promoter (e.g.,Intron I is the one closest to the promoter) .The data reported for species A were obtained by comparing DNA from one member of species A to another member of species A. % Sequence Homology -Based on the tabular data,and assuming that time advances vertically,which cladogram (a type of phylogenetic tree) is the most likely depiction of the evolutionary relationships among these five species? A) B) C) D)

E) A) and D)
F) None of the above

Correct Answer

verifed

verified

D

Three living species X,Y,and Z share a common ancestor T,as do extinct species U and V.A grouping that consists of species T,X,Y,and Z (but not U or V) makes up


A) a valid taxon.
B) a monophyletic clade.
C) an ingroup, with species U as the outgroup.
D) a paraphyletic group.
E) a polyphyletic group.

F) B) and C)
G) C) and D)

Correct Answer

verifed

verified

What important criterion was used in the late 1960s to distinguish between the three multicellular eukaryotic kingdoms of the five-kingdom classification system?


A) the number of cells present in individual organisms
B) the geological stratum in which fossils first appear
C) the nutritional modes they employ
D) the biogeographic province where each first appears
E) the features of their embryos

F) B) and D)
G) All of the above

Correct Answer

verifed

verified

What is true of the phylogeny in the above figure? 1) It is rooted. 2) The gibbons and siamangs represent an outgroup of the great apes. 3) Chimps and humans are the closest extant sister taxa depicted here. 4) It is absolute,meaning free of error. 5) The last common ancestor of the great apes lived about 14 million years ago.


A) 1, 2, and 3
B) 1, 2, and 5
C) 1, 2, 3, and 4
D) 1, 2, 3, and 5
E) 2, 3, 4, and 5

F) All of the above
G) A) and B)

Correct Answer

verifed

verified

The following questions refer to this phylogenetic tree,depicting the origins of life and of the three domains.Horizontal lines indicate instances of gene or genome transfer. The following questions refer to this phylogenetic tree,depicting the origins of life and of the three domains.Horizontal lines indicate instances of gene or genome transfer. A possible phylogenetic tree for the three domains of life. -If the early history of life on Earth is accurately depicted by the above figure,then which statement is least in agreement with the hypothesis proposed by this tree? A) The last universal common ancestor of all extant species is better described as a community of organisms, rather than an individual species. B) The origin of the three domains appears as a polytomy. C) Archaean genomes should contain genes that originated in bacteria, and vice versa. D) Eukaryotes are more closely related to archaeans than to bacteria. A possible phylogenetic tree for the three domains of life. -If the early history of life on Earth is accurately depicted by the above figure,then which statement is least in agreement with the hypothesis proposed by this tree?


A) The last universal common ancestor of all extant species is better described as a community of organisms, rather than an individual species.
B) The origin of the three domains appears as a polytomy.
C) Archaean genomes should contain genes that originated in bacteria, and vice versa.
D) Eukaryotes are more closely related to archaeans than to bacteria.

E) B) and C)
F) B) and D)

Correct Answer

verifed

verified

Which of the following is true of all horizontally oriented phylogenetic trees,where time advances to the right?


A) Each branch point represents a point in absolute time.
B) Organisms represented at the base of such trees are descendants of those represented at higher levels.
C) The fewer branch points that occur between two taxa, the more divergent their DNA sequences should be.
D) The common ancestor represented by the rightmost branch point existed more recently in time than the common ancestors represented at branch points located to the left.
E) The more branch points there are, the fewer taxa are likely to be represented.

F) A) and E)
G) A) and D)

Correct Answer

verifed

verified

Use the following information and figure to answer the questions below. Traditionally,whales and hippopotamuses have been classified in different orders,the Cetacea and the Artiodactyla,respectively.Recent molecular evidence,however,indicates that the whales' closest living relatives are the hippos.This has caused some zoologists to lump the two orders together into a single clade,the Cetartiodactyla.There is no consensus on whether the Cetartiodactyla should be accorded order status or superorder status.This is because it remains unclear whether the whale lineage diverged from the lineage leading to the hippos before or after the other members of the order Artiodactyla (pigs,camels,etc.) diverged (see the figure below) . Use the following information and figure to answer the questions below. Traditionally,whales and hippopotamuses have been classified in different orders,the Cetacea and the Artiodactyla,respectively.Recent molecular evidence,however,indicates that the whales' closest living relatives are the hippos.This has caused some zoologists to lump the two orders together into a single clade,the Cetartiodactyla.There is no consensus on whether the Cetartiodactyla should be accorded order status or superorder status.This is because it remains unclear whether the whale lineage diverged from the lineage leading to the hippos before or after the other members of the order Artiodactyla (pigs,camels,etc.) diverged (see the figure below) . This figure contrasts the Within the artiodactyls origin of the whale lineage with the Without the artiodactyls origin of the whale lineage. -If it turns out that the whale lineage diverged from the lineage leading to hippos after the divergence of the lineage leading to the pigs and other artiodactyls,and if the whales continue to be classified in the order Cetacea,then what becomes true of the taxon Cetartiodactyla? A) It should be considered as one monophyletic order. B) It should be considered a superorder that consists of two monophyletic orders. C) It should be established as a paraphyletic order. D) It should be thrown out or modified by taxonomists if classification is to reflect evolutionary history. This figure contrasts the "Within the artiodactyls" origin of the whale lineage with the "Without the artiodactyls" origin of the whale lineage. -If it turns out that the whale lineage diverged from the lineage leading to hippos after the divergence of the lineage leading to the pigs and other artiodactyls,and if the whales continue to be classified in the order Cetacea,then what becomes true of the taxon Cetartiodactyla?


A) It should be considered as one monophyletic order.
B) It should be considered a superorder that consists of two monophyletic orders.
C) It should be established as a paraphyletic order.
D) It should be thrown out or modified by taxonomists if classification is to reflect evolutionary history.

E) A) and D)
F) C) and D)

Correct Answer

verifed

verified

Which eukaryotic kingdom is polyphyletic,and therefore unacceptable,based on cladistics?


A) Plantae
B) Fungi
C) Animalia
D) Protista
E) Monera

F) A) and E)
G) D) and E)

Correct Answer

verifed

verified

What kind of evidence has recently made it necessary to assign the prokaryotes to either of two different domains,rather than assigning all prokaryotes to the same kingdom?


A) molecular
B) behavioural
C) nutritional
D) anatomical
E) ecological

F) A) and B)
G) All of the above

Correct Answer

verifed

verified

A

There is some evidence that reptiles called cynodonts may have had whisker-like hairs around their mouths.If true,then what can be properly said of hair?


A) It is a shared derived character of mammals, even if cynodonts continue to be classified as reptiles.
B) It is a shared derived character of the amniote clade, and not of the mammal clade.
C) It is a shared ancestral character of the amniote clade, but only if cynodonts are reclassified as mammals.
D) It is a shared derived character of the mammals, but only if cynodonts are reclassified as mammals.

E) A) and C)
F) A) and B)

Correct Answer

verifed

verified

Which eukaryotic kingdom includes members that are the result of endosymbioses that included an ancient proteobacterium and an ancient cyanobacterium?


A) Plantae
B) Fungi
C) Animalia
D) Protista
E) Monera

F) C) and D)
G) A) and D)

Correct Answer

verifed

verified

In a comparison of birds and mammals,having four limbs is


A) a shared ancestral character.
B) a shared derived character.
C) a character useful for distinguishing birds from mammals.
D) an example of analogy rather than homology.

E) B) and D)
F) A) and D)

Correct Answer

verifed

verified

Use the following information and figure to answer the questions below. Traditionally,whales and hippopotamuses have been classified in different orders,the Cetacea and the Artiodactyla,respectively.Recent molecular evidence,however,indicates that the whales' closest living relatives are the hippos.This has caused some zoologists to lump the two orders together into a single clade,the Cetartiodactyla.There is no consensus on whether the Cetartiodactyla should be accorded order status or superorder status.This is because it remains unclear whether the whale lineage diverged from the lineage leading to the hippos before or after the other members of the order Artiodactyla (pigs,camels,etc.) diverged (see the figure below) . Use the following information and figure to answer the questions below. Traditionally,whales and hippopotamuses have been classified in different orders,the Cetacea and the Artiodactyla,respectively.Recent molecular evidence,however,indicates that the whales' closest living relatives are the hippos.This has caused some zoologists to lump the two orders together into a single clade,the Cetartiodactyla.There is no consensus on whether the Cetartiodactyla should be accorded order status or superorder status.This is because it remains unclear whether the whale lineage diverged from the lineage leading to the hippos before or after the other members of the order Artiodactyla (pigs,camels,etc.) diverged (see the figure below) . This figure contrasts the Within the artiodactyls origin of the whale lineage with the Without the artiodactyls origin of the whale lineage. -Placing whales and hippos in the same clade means A) that these organisms are phenotypically more similar to each other than to any others shown on the trees in the above figure. B) that their morphological similarities are probably homoplasies. C) that they had a common ancestor. D) that all three of the responses are correct. E) that two of the responses are correct. This figure contrasts the "Within the artiodactyls" origin of the whale lineage with the "Without the artiodactyls" origin of the whale lineage. -Placing whales and hippos in the same clade means


A) that these organisms are phenotypically more similar to each other than to any others shown on the trees in the above figure.
B) that their morphological similarities are probably homoplasies.
C) that they had a common ancestor.
D) that all three of the responses are correct.
E) that two of the responses are correct.

F) All of the above
G) A) and B)

Correct Answer

verifed

verified

Use the following information and figure to answer the questions below. Traditionally,whales and hippopotamuses have been classified in different orders,the Cetacea and the Artiodactyla,respectively.Recent molecular evidence,however,indicates that the whales' closest living relatives are the hippos.This has caused some zoologists to lump the two orders together into a single clade,the Cetartiodactyla.There is no consensus on whether the Cetartiodactyla should be accorded order status or superorder status.This is because it remains unclear whether the whale lineage diverged from the lineage leading to the hippos before or after the other members of the order Artiodactyla (pigs,camels,etc.) diverged (see the figure below) . Use the following information and figure to answer the questions below. Traditionally,whales and hippopotamuses have been classified in different orders,the Cetacea and the Artiodactyla,respectively.Recent molecular evidence,however,indicates that the whales' closest living relatives are the hippos.This has caused some zoologists to lump the two orders together into a single clade,the Cetartiodactyla.There is no consensus on whether the Cetartiodactyla should be accorded order status or superorder status.This is because it remains unclear whether the whale lineage diverged from the lineage leading to the hippos before or after the other members of the order Artiodactyla (pigs,camels,etc.) diverged (see the figure below) . This figure contrasts the Within the artiodactyls origin of the whale lineage with the Without the artiodactyls origin of the whale lineage. -It was once thought that cetaceans had evolved from an extinct group of mammals called the mesonychids.If,in the future,it is determined that some organisms currently classified as cetaceans did actually evolve from mesonychids,whereas other cetaceans evolved from artiodactyl stock,then what will be true of the order Cetacea? A) It will be paraphyletic. B) It will be polyphyletic. C) It will need to be thrown out or modified if classification is to reflect evolutionary history. D) Two of the responses are correct. This figure contrasts the "Within the artiodactyls" origin of the whale lineage with the "Without the artiodactyls" origin of the whale lineage. -It was once thought that cetaceans had evolved from an extinct group of mammals called the mesonychids.If,in the future,it is determined that some organisms currently classified as cetaceans did actually evolve from mesonychids,whereas other cetaceans evolved from artiodactyl stock,then what will be true of the order Cetacea?


A) It will be paraphyletic.
B) It will be polyphyletic.
C) It will need to be thrown out or modified if classification is to reflect evolutionary history.
D) Two of the responses are correct.

E) All of the above
F) A) and D)

Correct Answer

verifed

verified

Showing 1 - 20 of 91

Related Exams

Exam 1

Introduction: Evolution and Themes of Biology

77 Questions

Exam 2

The Chemical Context of Life

98 Questions

Exam 3

Water and Life

92 Questions

Exam 4

Carbon and the Molecular Diversity of Life

86 Questions

Exam 5

The Structure and Function of Large Biological Molecules

131 Questions

Exam 6

A Tour of the Cell

111 Questions

Exam 7

Membrane Structure and Function

88 Questions

Exam 8

An Introduction to Metabolism

92 Questions

Exam 9

Cellular Respiration and Fermentation

128 Questions

Exam 10

Photosynthesis

103 Questions

Exam 11

Cell Communication

85 Questions

Exam 12

The Cell Cycle

98 Questions

Exam 13

Meiosis and Sexual Life Cycles

90 Questions

Exam 14

Mendel and the Gene Idea

92 Questions

Exam 15

The Chromosomal Basis of Inheritance

75 Questions

Exam 16

The Molecular Basis of Inheritance

84 Questions

Exam 17

From Gene to Protein

106 Questions

Exam 18

Regulation of Gene Expression

116 Questions

Exam 19

Viruses

71 Questions

Exam 20

DNA Tools and Biotechnology

78 Questions

Exam 21

Genomes and Their Evolution

64 Questions

Exam 22

Descent with Modification: A Darwinian View of Life

68 Questions

Exam 23

The Evolution of Populations

92 Questions

Exam 24

The Origin of Species

76 Questions

Exam 25

The History of Life on Earth

89 Questions

Exam 27

Bacteria and Archaea

96 Questions

Exam 28

Protists

82 Questions

Exam 29

Plant Diversity I: How Plants Colonized Land

93 Questions

Exam 30

Plant Diversity II: The Evolution of Seed Plants

119 Questions

Exam 31

Fungi

105 Questions

Exam 32

An Overview of Animal Diversity

93 Questions

Exam 33

An Introduction to Invertebrates

111 Questions

Exam 34

The Origin and Evolution of Vertebrates

126 Questions

Exam 35

Plant Structure,Growth,and Development

82 Questions

Exam 36

Resource Acquisition and Transport in Vascular Plants

100 Questions

Exam 37

Soil and Plant Nutrition

99 Questions

Exam 38

Angiosperm Reproduction and Biotechnology

107 Questions

Exam 39

Plant Responses to Internal and External Signals

137 Questions

Exam 40

Basic Principles of Animal Form and Function

98 Questions

Exam 41

Animal Nutrition

87 Questions

Exam 42

Circulation and Gas Exchange

112 Questions

Exam 43

The Immune System

123 Questions

Exam 44

Osmoregulation and Excretion

91 Questions

Exam 45

Hormones and the Endocrine System

92 Questions

Exam 46

Animal Reproduction

104 Questions

Exam 47

Animal Development

106 Questions

Exam 48

Neurons,Synapses,and Signalling

93 Questions

Exam 49

Nervous Systems

85 Questions

Exam 50

Sensory and Motor Mechanisms

106 Questions

Exam 51

Animal Behaviour

91 Questions

Exam 52

An Introduction to Ecology and the Biosphere

90 Questions

Exam 53

Population Ecology

89 Questions

Exam 54

Community Ecology

97 Questions

Exam 55

Ecosystems and Restoration Ecology

98 Questions

Exam 56

Conservation Biology and Global Change

90 Questions

Show Answer