Question 1

Which of the following is the most inclusive group that would include a segmented marine animal that develops through spiral cleavage and has parapodia?

Accepted Answer

A)  Nematodes 
B)  Annelids 
C)  Brachiopods 
D)  Mollusks 
E)  Flatworms 
A)  Nematodes 
B)  Annelids 
C)  Brachiopods 
D)  Mollusks 
E)  Flatworms

Question 2

Which of the following insect groups is made up of species that undergo complete metamorphosis and can fold their wings back over their bodies?

Accepted Answer

A)  Coleoptera (beetles) 
B)  Apterygota (silverfish and springtails) 
C)  Orthoptera (grasshoppers and their kin) 
D)  Odonata (dragonflies and damselflies) 
E)  Ephemeroptera (mayflies) 
A)  Coleoptera (beetles) 
B)  Apterygota (silverfish and springtails) 
C)  Orthoptera (grasshoppers and their kin) 
D)  Odonata (dragonflies and damselflies) 
E)  Ephemeroptera (mayflies)

Question 3

Which of the following groups is not part of the annelid clade?

Accepted Answer

A)  Bryozoans 
B)  Polychaetes 
C)  Oligochaetes 
D)  Clitellates 
E)  Leeches 
A)  Bryozoans 
B)  Polychaetes 
C)  Oligochaetes 
D)  Clitellates 
E)  Leeches

Question 4

Nautiluses are unique among living cephalopods in that they have

Accepted Answer

A)  an excurrent siphon. 
B)  eyes comparable to vertebrates. 
C)  an incurrent siphon. 
D)  a chambered shell. 
E)  All of the above 
A)  an excurrent siphon. 
B)  eyes comparable to vertebrates. 
C)  an incurrent siphon. 
D)  a chambered shell. 
E)  All of the above

Question 5

Members of which groups have lophophores?

Accepted Answer

A)  Phoronids, brachiopods, and nematodes 
B)  Phoronids, brachiopods, and bryozoans 
C)  Brachiopods, bryozoans, and flatworms 
D)  Phoronids, rotifers, and bryozoans 
E)  Rotifers, bryozoans, and brachiopods 
A)  Phoronids, brachiopods, and nematodes 
B)  Phoronids, brachiopods, and bryozoans 
C)  Brachiopods, bryozoans, and flatworms 
D)  Phoronids, rotifers, and bryozoans 
E)  Rotifers, bryozoans, and brachiopods

Question 6

Which of the following are so numerous that they are thought to be the most abundant of all marine arthropods?

Accepted Answer

A)  Crustaceans 
B)  Millipedes 
C)  Nematomorphs 
D)  Barnacles 
E)  Apterygotes 
A)  Crustaceans 
B)  Millipedes 
C)  Nematomorphs 
D)  Barnacles 
E)  Apterygotes

Question 7

Nematodes

Accepted Answer

A)  have a hard exoskeleton. 
B)  move by the action of cilia. 
C)  are one of the most abundant of all animal groups. 
D)  are segmented. 
E)  are all parasites. 
A)  have a hard exoskeleton. 
B)  move by the action of cilia. 
C)  are one of the most abundant of all animal groups. 
D)  are segmented. 
E)  are all parasites.

Question 8

For centuries, _______ have been used medically to reduce fluid pressure and prevent blood clotting.

Accepted Answer

The answer of For centuries, _______ have been used medically...

Question 9

A thickened, strong, flexible, waterproof polysaccharide body covering called _______ was characteristic of the Precambrian ecdysozoan lineage leading to arthropods.

Accepted Answer

The answer of A thickened, strong, flexible, waterproof polysaccharide body...

Question 10

Which body part in a mollusk secretes the shell?

Accepted Answer

A)  Mantle 
B)  Foot 
C)  Visceral mass 
D)  Radula 
E)  Spicules 
A)  Mantle 
B)  Foot 
C)  Visceral mass 
D)  Radula 
E)  Spicules

Question 11

Spiral cleavage is found in a subset of lophotrchozoans, including the ribbon worms, annelids, and

Accepted Answer

A)  phoronids. 
B)  mollusks. 
C)  bryozoans. 
D)  rotifers. 
E)  flatworms. 
A)  phoronids. 
B)  mollusks. 
C)  bryozoans. 
D)  rotifers. 
E)  flatworms.

Question 12

The typical crustacean larva is called a(n)

Accepted Answer

A)  nauplius. 
B)  pupa. 
C)  instar. 
D)  cyst. 
E)  juvenile. 
A)  nauplius. 
B)  pupa. 
C)  instar. 
D)  cyst. 
E)  juvenile.

Question 13

Which of the following living arthropod groups has a long fossil history showing little morphological change?

Accepted Answer

A)  Pycnogonids (sea spiders) 
B)  Arachnids (mites, ticks, and spiders) 
C)  Horseshoe crabs 
D)  Trilobites 
E)  Onychophorans 
A)  Pycnogonids (sea spiders) 
B)  Arachnids (mites, ticks, and spiders) 
C)  Horseshoe crabs 
D)  Trilobites 
E)  Onychophorans

Question 14

In free-living flatworms, which of the following functions occurs by simple diffusion?

Accepted Answer

A)  Respiration 
B)  Absorption of nutrients 
C)  Excretion 
D)  Distribution of nutrients within the body 
E)  All of the above 
A)  Respiration 
B)  Absorption of nutrients 
C)  Excretion 
D)  Distribution of nutrients within the body 
E)  All of the above

Question 15

Some mollusks have a rasping feeding structure known as the

Accepted Answer

A)  proboscis. 
B)  rhynchocoel. 
C)  radula. 
D)  corona. 
E)  mastax. 
A)  proboscis. 
B)  rhynchocoel. 
C)  radula. 
D)  corona. 
E)  mastax.

Question 16

The _______ have bodies that are divided into two parts: a head region that bears two pairs of appendages modified to form mouthparts, and a trunk region with typically four pairs of walking legs.

Accepted Answer

A)  chelicerates 
B)  crustaceans 
C)  hexapods 
D)  nematodes 
E)  myriapods 
A)  chelicerates 
B)  crustaceans 
C)  hexapods 
D)  nematodes 
E)  myriapods

Question 17

Which taxa have an open circulatory system, a complete digestive tract, and a reduction of the coelom?

Accepted Answer

A)  Rotifers 
B)  Annelids 
C)  Mollusks 
D)  Nematodes 
E)  Flatworms 
A)  Rotifers 
B)  Annelids 
C)  Mollusks 
D)  Nematodes 
E)  Flatworms

Question 18

The body plan of insects is composed of which of the three following regions?

Accepted Answer

A)  Head, abdomen, and trachea 
B)  Head, abdomen, and cephalothorax 
C)  Cephalothorax, abdomen, and trachea 
D)  Head, thorax, and abdomen 
E)  Abdomen, trachea, and mantle 
A)  Head, abdomen, and trachea 
B)  Head, abdomen, and cephalothorax 
C)  Cephalothorax, abdomen, and trachea 
D)  Head, thorax, and abdomen 
E)  Abdomen, trachea, and mantle

Question 19

Which of the following statements about brachiopods is false?

Accepted Answer

A)  There are more fossil species of brachiopods than extant species. 
B)  Brachiopods have lophophores. 
C)  Brachiopods are bivalve mollusks. 
D)  Brachiopods are attached to a substratum. 
E)  Most brachiopods release their gametes into the water. 
A)  There are more fossil species of brachiopods than extant species. 
B)  Brachiopods have lophophores. 
C)  Brachiopods are bivalve mollusks. 
D)  Brachiopods are attached to a substratum. 
E)  Most brachiopods release their gametes into the water.

Question 20

Which of the following statements concerning the tracheal system in insects is false?

Accepted Answer

A)  Tracheae are air sacs and tubular channels. 
B)  Tracheae penetrate virtually every part of an insect's body. 
C)  Tracheae extend through a single tube to an insect's mouth. 
D)  Tracheae provide oxygen to the insects' tissues. 
E)  Tracheae extend from external openings inward to tissues throughout the body. 
A)  Tracheae are air sacs and tubular channels. 
B)  Tracheae penetrate virtually every part of an insect's body. 
C)  Tracheae extend through a single tube to an insect's mouth. 
D)  Tracheae provide oxygen to the insects' tissues. 
E)  Tracheae extend from external openings inward to tissues throughout the body.

Exam 32: Protostome Animals

Which of the following is the most inclusive group that would include a segmented marine animal that develops through spiral cleavage and has parapodia?

Which of the following insect groups is made up of species that undergo complete metamorphosis and can fold their wings back over their bodies?

Which of the following groups is not part of the annelid clade?

Nautiluses are unique among living cephalopods in that they have

Members of which groups have lophophores?

Which of the following are so numerous that they are thought to be the most abundant of all marine arthropods?

Nematodes

For centuries, _______ have been used medically to reduce fluid pressure and prevent blood clotting.

A thickened, strong, flexible, waterproof polysaccharide body covering called _______ was characteristic of the Precambrian ecdysozoan lineage leading to arthropods.

Which body part in a mollusk secretes the shell?

Spiral cleavage is found in a subset of lophotrchozoans, including the ribbon worms, annelids, and

The typical crustacean larva is called a(n)

Which of the following living arthropod groups has a long fossil history showing little morphological change?

In free-living flatworms, which of the following functions occurs by simple diffusion?

Some mollusks have a rasping feeding structure known as the

The _______ have bodies that are divided into two parts: a head region that bears two pairs of appendages modified to form mouthparts, and a trunk region with typically four pairs of walking legs.

Which taxa have an open circulatory system, a complete digestive tract, and a reduction of the coelom?

The body plan of insects is composed of which of the three following regions?

Which of the following statements about brachiopods is false?

Which of the following statements concerning the tracheal system in insects is false?

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

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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

Deuterostome Animals

The Plant Body

Transport in Plants

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Plant Responses to Environmental Challenges

Physiology, Homeostasis, and Temperature Regulation

Animal Hormones

Immunology: Animal Defense Systems

Animal Reproduction

Animal Development

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The Mammalian Nervous System: Structure and Higher Function

Musculoskeletal Systems

Gas Exchange in Animals

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Salt and Water Balance and Nitrogen

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Ecology and the Distribution of Life

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