Question 1

Cephalopods have an open circulatory system.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following is NOT a correct statement regarding collar cells?

Accepted Answer

A)  They make up the inner layer of certain sponges. 
B)  The collar cell is an extension of the cell wall and consists of microvilli. 
C)  Collar cells create a water current that brings food and oxygen to the cells, and carries away carbon dioxide and other wastes. 
D)  Collar cells trap and phagocytize food particles. 
E)  Together, the collar cells of some sponges can pump a volume of water equal to the volume of the sponge each minute. 
A)  They make up the inner layer of certain sponges. 
B)  The collar cell is an extension of the cell wall and consists of microvilli. 
C)  Collar cells create a water current that brings food and oxygen to the cells, and carries away carbon dioxide and other wastes. 
D)  Collar cells trap and phagocytize food particles. 
E)  Together, the collar cells of some sponges can pump a volume of water equal to the volume of the sponge each minute.

Question 3

The intermediate host for a blood fluke is a:

Accepted Answer

A)  human 
B)  cow 
C)  dog 
D)  cat 
E)  snail 
A)  human 
B)  cow 
C)  dog 
D)  cat 
E)  snail

Question 4

Figure 31-6 ​
 
Refer to the accompanying figure. Which label denotes the nerve cord?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  5 
E)  6 
A)  1 
B)  2 
C)  3 
D)  5 
E)  6

Question 5

The anterior end of a tapeworm is known as the:

Accepted Answer

A)  protonephridia 
B)  proglottid 
C)  cnidocyte 
D)  auricle 
E)  scolex 
A)  protonephridia 
B)  proglottid 
C)  cnidocyte 
D)  auricle 
E)  scolex

Question 6

Sponges are believed to have arisen from the choanoflagellates because they possess:

Accepted Answer

A)  amebocytes 
B)  collar cells 
C)  spongin 
D)  spicules 
E)  oscula 
A)  amebocytes 
B)  collar cells 
C)  spongin 
D)  spicules 
E)  oscula

Question 7

Members of phylum Arthropoda have paired, jointed appendages.

Accepted Answer

A) True 
 B)False

Question 8

An animal found in the rocky intertidal zone has eight overlapping plates and is tightly adhering to the rock with a muscular foot. This animal is most likely a member of the class:

Accepted Answer

A)  Polyplacophora 
B)  Cephalopoda 
C)  Polychaeta 
D)  Gastropoda 
E)  Bivalvia 
A)  Polyplacophora 
B)  Cephalopoda 
C)  Polychaeta 
D)  Gastropoda 
E)  Bivalvia

Question 9

From an evolutionary perspective, true nerve cells are first seen in the phylum:

Accepted Answer

A)  Porifera 
B)  Cnidaria 
C)  Ctenophora 
D)  Mollusca 
E)  Arthropoda 
A)  Porifera 
B)  Cnidaria 
C)  Ctenophora 
D)  Mollusca 
E)  Arthropoda

Question 10

Which of the following is a difference between flatworms and nemerteans?

Accepted Answer

A)  There are no species of parasitic flatworms. 
B)  Flatworm larvae burrow into the skin, whereas nemertean larvae are ingested. 
C)  There are no species of predacious flatworms. 
D)  Flatworms have a proboscis, whereas nemerteans do not. 
E)  Flatworms do not have a digestive system, whereas nemerteans do. 
A)  There are no species of parasitic flatworms. 
B)  Flatworm larvae burrow into the skin, whereas nemertean larvae are ingested. 
C)  There are no species of predacious flatworms. 
D)  Flatworms have a proboscis, whereas nemerteans do not. 
E)  Flatworms do not have a digestive system, whereas nemerteans do.

Question 11

Gas exchange in terrestrial insects is accomplished through:

Accepted Answer

A)  the use of gills 
B)  the use of tracheae 
C)  the use of book lungs 
D)  a closed circulatory system 
E)  diffusion across the epidermal layer 
A)  the use of gills 
B)  the use of tracheae 
C)  the use of book lungs 
D)  a closed circulatory system 
E)  diffusion across the epidermal layer

Question 12

Figure 31-5 ​
 
Refer to the accompanying figure. What is the function of the structure labeled as 8?

Accepted Answer

A)  digestion 
B)  respiration 
C)  circulation 
D)  movement 
E)  reproduction 
A)  digestion 
B)  respiration 
C)  circulation 
D)  movement 
E)  reproduction

Question 13

Figure 31-2 ​
 
Refer to the accompanying figure. What is the structure labeled as 8 in the figure?

Accepted Answer

A)  anus 
B)  mouth 
C)  ganglia 
D)  eyespots 
E)  pharynx 
A)  anus 
B)  mouth 
C)  ganglia 
D)  eyespots 
E)  pharynx

Question 14

Which statement best describes a lophophore?

Accepted Answer

A)  It is a ciliated ring of tentacles surrounding the mouth. 
B)  It is a structure used for locomotion in the Lophophorata. 
C)  It is the opening also referred to as the anus in the Ecdysozoa. 
D)  It is a larval stage found in the Lophotrochozoa and the Ecdysozoa. 
E)  It is one of the openings to the excretory system of phylum Platyhelminthes. 
A)  It is a ciliated ring of tentacles surrounding the mouth. 
B)  It is a structure used for locomotion in the Lophophorata. 
C)  It is the opening also referred to as the anus in the Ecdysozoa. 
D)  It is a larval stage found in the Lophotrochozoa and the Ecdysozoa. 
E)  It is one of the openings to the excretory system of phylum Platyhelminthes.

Question 15

The Portuguese man-of-war is a colony of hundreds to thousands of:

Accepted Answer

A)  sea anemones 
B)  ctenophores 
C)  hydrozoans 
D)  jellyfish 
E)  sponges 
A)  sea anemones 
B)  ctenophores 
C)  hydrozoans 
D)  jellyfish 
E)  sponges

Question 16

Figure 31-2 ​
 
Refer to the accompanying figure. What label designates the auricles on this organism?

Accepted Answer

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

Question 17

Malpighian tubules are used for excretion.

Accepted Answer

A) True 
 B)False

Question 18

Figure 31-5 ​
 
Refer to the accompanying figure. What is the structure labeled as 9?

Accepted Answer

A)  foot 
B)  gills 
C)  heart 
D)  siphons 
E)  digestive tract 
A)  foot 
B)  gills 
C)  heart 
D)  siphons 
E)  digestive tract

Question 19

Segmentation is important in annelids as an aid in:

Accepted Answer

A)  reproduction 
B)  locomotion 
C)  respiration 
D)  sensation 
E)  eating 
A)  reproduction 
B)  locomotion 
C)  respiration 
D)  sensation 
E)  eating

Question 20

Which of the following produces a silken dragline that can be used to determine the sex and maturity level of the spinner?

Accepted Answer

A)  harvestmen 
B)  ticks 
C)  spiders 
D)  scorpions 
E)  mites 
A)  harvestmen 
B)  ticks 
C)  spiders 
D)  scorpions 
E)  mites

Exam 31: Sponges, Cnidarians, Ctenophores, and Protostomes

Cephalopods have an open circulatory system.

Which of the following is NOT a correct statement regarding collar cells?

The intermediate host for a blood fluke is a:

Figure 31-6 ​ Refer to the accompanying figure. Which label denotes the nerve cord?

The anterior end of a tapeworm is known as the:

Sponges are believed to have arisen from the choanoflagellates because they possess:

Members of phylum Arthropoda have paired, jointed appendages.

An animal found in the rocky intertidal zone has eight overlapping plates and is tightly adhering to the rock with a muscular foot. This animal is most likely a member of the class:

From an evolutionary perspective, true nerve cells are first seen in the phylum:

Which of the following is a difference between flatworms and nemerteans?

Gas exchange in terrestrial insects is accomplished through:

Figure 31-5 ​ Refer to the accompanying figure. What is the function of the structure labeled as 8?

Figure 31-2 ​ Refer to the accompanying figure. What is the structure labeled as 8 in the figure?

Which statement best describes a lophophore?

The Portuguese man-of-war is a colony of hundreds to thousands of:

Figure 31-2 ​ Refer to the accompanying figure. What label designates the auricles on this organism?

Malpighian tubules are used for excretion.

Figure 31-5 ​ Refer to the accompanying figure. What is the structure labeled as 9?

Segmentation is important in annelids as an aid in:

Which of the following produces a silken dragline that can be used to determine the sex and maturity level of the spinner?

A View of Life

Atoms and Molecules: the Chemical Basis of Life

The Chemistry of Life: Organic Compounds

Organization of the Cell

Biological Membranes

Cell Communication

Energy and Metabolism

How Cells Make Atp: Energy-Releasing Pathways

Photosynthesis: Capturing Light Energy

Chromosomes, Mitosis, and Meiosis

The Basic Principles of Heredity

DNA: The Carrier of Genetic Information

Gene Expression

Gene Regulation

DNA Technology and Genomics

Human Genetics and the Human Genome

Developmental Genetics

Introduction to Darwinian Evolution

Evolutionary Change in Populations

Speciation and Macroevolution

The Origin and Evolutionary History of Life

The Evolution of Primates

Understanding Diversity: Systematics

Viruses and Subviral Agents

Bacteria and Archaea

Protists

Seedless Plants

Seed Plants

The Fungi

An Introduction to Animal Diversity

The Deuterostomes

Plant Structure, Growth, and Development

Leaf Structure and Function

Stem Structure and Transport

Roots and Mineral Nutrition

Reproduction in Flowering Plants

Plant Developmental Responses to External and Internal Signals

Animal Structure and Function: an Introduction

Protection, Support, and Movement

Neural Signaling

Neural Regulation

Sensory Systems

Internal Transport

The Immune System: Internal Defense

Gas Exchange

Processing Food and Nutrition

Osmoregulation and Disposal of Metabolic Wastes

Endocrine Regulation

Reproduction

Animal Development

Animal Behavior

Introduction to Ecology: Population Ecology

Community Ecology

Ecosystems and the Biosphere

Ecology and the Geography of Life

Biological Diversity and Conservation Biology

Filters

Figure 31-6 Refer to the accompanying figure. Which label denotes the nerve cord?

Figure 31-5 Refer to the accompanying figure. What is the function of the structure labeled as 8?

Figure 31-2 Refer to the accompanying figure. What is the structure labeled as 8 in the figure?

Figure 31-2 Refer to the accompanying figure. What label designates the auricles on this organism?

Figure 31-5 Refer to the accompanying figure. What is the structure labeled as 9?