Question 1

The swim bladder of many fishes that evolved from a lunglike sac has the important function of

Accepted Answer

A)  aiding in prey capture. 
B)  controlling swimming speed. 
C)  controlling buoyancy. 
D)  aiding in reproduction. 
E)  providing balance. 
A)  aiding in prey capture. 
B)  controlling swimming speed. 
C)  controlling buoyancy. 
D)  aiding in reproduction. 
E)  providing balance.

Question 2

Which of the following statements about the amphibians is false?

Accepted Answer

A)  They were more abundant in the past than they are today. 
B)  Waterproof coverings on their skin allow them to be terrestrial. 
C)  Most must reproduce in or near water. 
D)  Their eggs are very sensitive to drying. 
E)  Living amphibians belong to three sister groups. 
A)  They were more abundant in the past than they are today. 
B)  Waterproof coverings on their skin allow them to be terrestrial. 
C)  Most must reproduce in or near water. 
D)  Their eggs are very sensitive to drying. 
E)  Living amphibians belong to three sister groups.

Question 3

Which of the following is not a feature of the vertebrate body plan?

Accepted Answer

A)  A ventral spinal cord 
B)  An internal skeleton 
C)  A well-developed circulatory system 
D)  Organs suspended in the coelom 
E)  An anterior skull encasing a proportionally large brain. 
A)  A ventral spinal cord 
B)  An internal skeleton 
C)  A well-developed circulatory system 
D)  Organs suspended in the coelom 
E)  An anterior skull encasing a proportionally large brain.

Question 4

Suppose that you discover the fossil of a new organism that has radial symmetry and was in a marine environment (as shown by examining the surrounding rock and adjacent fossils in the rock layer). What other features would you look for in order to determine if this fossil is an echinoderm?

Accepted Answer

You would look for evidence of

Question 5

The ray-finned fishes regulate their buoyancy by means of an organ called the _______.

Accepted Answer

The answer of The ray-finned fishes regulate their buoyancy by...

Question 6

Which of the following was an adaptation first found in reptiles that was necessary for their complete shift from water to land?

Accepted Answer

A)  A hard-shelled (amniote) egg 
B)  Parental care 
C)  Watertight skin 
D)  The ability to breathe and run simultaneously 
E)  Both a and c 
A)  A hard-shelled (amniote) egg 
B)  Parental care 
C)  Watertight skin 
D)  The ability to breathe and run simultaneously 
E)  Both a and c

Question 7

The _______ were the first major animal group that could live completely outside of water

Accepted Answer

The answer of The _______ were the first major animal...

Question 8

Evolution of jaws first occurred in the group of fishes known as the

Accepted Answer

A)  ostracoderms. 
B)  gnathostomes. 
C)  cartilaginous fishes. 
D)  coelacanths. 
E)  ray-finned fishes. 
A)  ostracoderms. 
B)  gnathostomes. 
C)  cartilaginous fishes. 
D)  coelacanths. 
E)  ray-finned fishes.

Question 9

Which of the following is the most unique characteristic of birds?

Accepted Answer

A)  The scales on their legs 
B)  Their ability to lay eggs that will not dry out 
C)  The presence of feathers 
D)  The enormous amount of parental care they provide their young 
E)  None of the above 
A)  The scales on their legs 
B)  Their ability to lay eggs that will not dry out 
C)  The presence of feathers 
D)  The enormous amount of parental care they provide their young 
E)  None of the above

Question 10

In the evolutionary lineage leading to the chordates, a dorsal supporting structure called the _______ evolved.

Accepted Answer

The answer of In the evolutionary lineage leading to the...

Question 11

A difference between amphibians and reptiles is that

Accepted Answer

A)  amphibian eggs can survive out of water and reptile eggs cannot. 
B)  amphibians have thin skin whereas reptiles have thick skin. 
C)  amphibians have gills and lungs whereas reptiles have only lungs. 
D)  Both a and b 
E)  All of the above 
A)  amphibian eggs can survive out of water and reptile eggs cannot. 
B)  amphibians have thin skin whereas reptiles have thick skin. 
C)  amphibians have gills and lungs whereas reptiles have only lungs. 
D)  Both a and b 
E)  All of the above

Question 12

Cephalochordates

Accepted Answer

A)  are the sister clade to vertebrates. 
B)  do not have a notochord in the adult stage. 
C)  use modified tube feet for feeding. 
D)  are a species-rich group. 
E)  form colonies. 
A)  are the sister clade to vertebrates. 
B)  do not have a notochord in the adult stage. 
C)  use modified tube feet for feeding. 
D)  are a species-rich group. 
E)  form colonies.

Question 13

We can refer to birds as "living dinosaurs" because

Accepted Answer

A)  birds are descendants of a lineage of dinosaurs. 
B)  all dinosaurs had feathers as well as scales. 
C)  birds lay amniote eggs, just as dinosaurs did. 
D)  dinosaurs had jointed appendages just as birds do. 
E)  birds are triploblastic, just as dinosaurs were. 
A)  birds are descendants of a lineage of dinosaurs. 
B)  all dinosaurs had feathers as well as scales. 
C)  birds lay amniote eggs, just as dinosaurs did. 
D)  dinosaurs had jointed appendages just as birds do. 
E)  birds are triploblastic, just as dinosaurs were.

Question 14

Which of the following is not part of the molluscan body plan?

Accepted Answer

A)  Mantle 
B)  Foot 
C)  Radula 
D)  Visceral mass 
E)  Jointed skeleton 
A)  Mantle 
B)  Foot 
C)  Radula 
D)  Visceral mass 
E)  Jointed skeleton

Question 15

The amniotes evolved the ability to reproduce by laying eggs that have shells. The major advantage of shelled eggs is that

Accepted Answer

A)  the embryo needs only a small amount of yolk for development. 
B)  they do not have to be laid in a moist environment. 
C)  the shells increase evaporation from the egg. 
D)  nitrogenous wastes can be excreted across the shell. 
E)  gas exchange with the environment is more efficient. 
A)  the embryo needs only a small amount of yolk for development. 
B)  they do not have to be laid in a moist environment. 
C)  the shells increase evaporation from the egg. 
D)  nitrogenous wastes can be excreted across the shell. 
E)  gas exchange with the environment is more efficient.

Question 16

The _______ include prototherians, marsupials, and eutherians.

Accepted Answer

The answer of The _______ include prototherians, marsupials, and eutherians....

Question 17

The _______ include tarsiers, New World monkeys, Old World monkeys, apes, and humans.

Accepted Answer

The answer of The _______ include tarsiers, New World monkeys,...

Question 18

The early fishes that evolved jaws are known as _______.

Accepted Answer

The answer of The early fishes that evolved jaws are...

Question 19

Place the following groups of eutherians in order of decreasing species richness. 
(1) Bats
(2) Elephants
(3) Primates
(4) Rodents
(5) Shrews and moles

Accepted Answer

A)  4; 5; 3; 1; 2 
B)  5; 4; 1; 2; 3 
C)  4; 5; 1; 3; 2 
D)  4; 1; 5; 3; 2 
E)  5; 1; 4; 3; 2 
A)  4; 5; 3; 1; 2 
B)  5; 4; 1; 2; 3 
C)  4; 5; 1; 3; 2 
D)  4; 1; 5; 3; 2 
E)  5; 1; 4; 3; 2

Question 20

The muscular pharynx of an acorn worm (Hemichordata) opens to the outside with a number of _______ through which water can exit.

Accepted Answer

The answer of The muscular pharynx of an acorn worm...

Exam 33: Deuterostome Animals

The swim bladder of many fishes that evolved from a lunglike sac has the important function of

Which of the following statements about the amphibians is false?

Which of the following is not a feature of the vertebrate body plan?

Suppose that you discover the fossil of a new organism that has radial symmetry and was in a marine environment (as shown by examining the surrounding rock and adjacent fossils in the rock layer). What other features would you look for in order to determine if this fossil is an echinoderm?

The ray-finned fishes regulate their buoyancy by means of an organ called the _______.

Which of the following was an adaptation first found in reptiles that was necessary for their complete shift from water to land?

The _______ were the first major animal group that could live completely outside of water

Evolution of jaws first occurred in the group of fishes known as the

Which of the following is the most unique characteristic of birds?

In the evolutionary lineage leading to the chordates, a dorsal supporting structure called the _______ evolved.

A difference between amphibians and reptiles is that

Cephalochordates

We can refer to birds as "living dinosaurs" because

Which of the following is not part of the molluscan body plan?

The amniotes evolved the ability to reproduce by laying eggs that have shells. The major advantage of shelled eggs is that

The _______ include prototherians, marsupials, and eutherians.

The _______ include tarsiers, New World monkeys, Old World monkeys, apes, and humans.

The early fishes that evolved jaws are known as _______.

Place the following groups of eutherians in order of decreasing species richness. (1) Bats (2) Elephants (3) Primates (4) Rodents (5) Shrews and moles

The muscular pharynx of an acorn worm (Hemichordata) opens to the outside with a number of _______ through which water can exit.

Studying Life

Small Molecules and the Chemistry of Life

Proteins, Carbohydrates, and Lipids

Nucleic Acids and the Origin of Life

Cells: the Working Units of Life

Cell Membranes

Cell Signaling and Communication

Energy, Enzymes, and Metabolism

Pathways That Harvest Chemical Energy

Photosynthesis: Energy From Sunlight

The Cell Cycle and Cell Division

Inheritance, Genes, and Chromosomes

Dna and Its Role in Heredity

From Dna to Protein: Gene Expression

Gene Mutation and Molecular Medicine

Regulation of Gene Expression

Genomes

Recombinent Dna and Biotechnology

Differential Gene Expression in Development

Development and Evolutionary Change

Evidence and Mechanisms of Evolution

Reconstructing and Using Phylogenies

Species and Their Formation

Evolution of Genes and Genomes

The History of Life on Earth

Bacteria and Archaea: the Prokaryotic Domains

The Origin and Diversification of Eukaryotes

Plants Without Seeds: From Water to Land

The Evolution of Seed Plants

Fungi: Recyclers, Pathogens, Parasites, and Plant Partners

Animal Origins and the Evolution of Body Plans

Protostome Animals

The Plant Body

Transport in Plants

Plant Nutrition

Regulation of Plant Growth

Reproduction in Flowering Plants

Plant Responses to Environmental Challenges

Physiology, Homeostasis, and Temperature Regulation

Animal Hormones

Immunology: Animal Defense Systems

Animal Reproduction

Animal Development

Neurons and Nervous Systems

Sensory Systems

The Mammalian Nervous System: Structure and Higher Function

Musculoskeletal Systems

Gas Exchange in Animals

Circulatory Systems

Nutrition, Digestion, and Absorption

Salt and Water Balance and Nitrogen

Animal Behavior

Ecology and the Distribution of Life

Population Ecology

Species Interaction and Coevolution

Community Ecology

Ecosystems and Global Ecology

Conservation Biology

Filters