Question 1

What is a disadvantage to having an exoskeleton?

Accepted Answer

A)  Exoskeletons interfere with ingestion. 
B)  Exoskeletons severely limit locomotion. 
C)  Exoskeletons do not prevent desiccation. 
D)  Exoskeletons do not provide adequate protection from predators. 
E)  Exoskeletons must be shed when the animal grows, exposing the animal to predators. 
A)  Exoskeletons interfere with ingestion. 
B)  Exoskeletons severely limit locomotion. 
C)  Exoskeletons do not prevent desiccation. 
D)  Exoskeletons do not provide adequate protection from predators. 
E)  Exoskeletons must be shed when the animal grows, exposing the animal to predators.

Question 2

What is the mode of nutrition for most Poriferans?

Accepted Answer

A)  parasites 
B)  autotrophs 
C)  carnivores 
D)  herbivores 
E)  suspension feeders 
A)  parasites 
B)  autotrophs 
C)  carnivores 
D)  herbivores 
E)  suspension feeders

Question 3

A nauplius larva is characteristic of:

Accepted Answer

A)  molluscs 
B)  gastropods 
C)  echinoderms 
D)  crustaceans 
E)  ctenophores 
A)  molluscs 
B)  gastropods 
C)  echinoderms 
D)  crustaceans 
E)  ctenophores

Question 4

Which of the following species has been used for centuries to draw blood from areas swollen by poisonous stings and bites?

Accepted Answer

A)  polychaetes 
B)  leeches 
C)  tapeworms 
D)  hookworms 
E)  earthworms 
A)  polychaetes 
B)  leeches 
C)  tapeworms 
D)  hookworms 
E)  earthworms

Question 5

Match between columns
                        Premises: ribbon worms

Accepted Answer

The Answer of Platyhelminthes and Arthropoda and Mollusca and Rotifera is...

Question 6

Which of the following is characteristic of flatworms?

Accepted Answer

A)  They are acoelomate (have no body cavity). 
B)  They commonly have a complex nervous system. 
C)  They do not have eyespots. 
D)  They do not have statocysts (organs of balance). 
E)  They have organs for food and gas exchange. 
A)  They are acoelomate (have no body cavity). 
B)  They commonly have a complex nervous system. 
C)  They do not have eyespots. 
D)  They do not have statocysts (organs of balance). 
E)  They have organs for food and gas exchange.

Question 7

Match between columns
                        Premises: lobsters

Accepted Answer

The Answer of Porifera and Annelida and Rotifera and Nemertea is...

Question 8

Match between columns
                        Premises: squids

Accepted Answer

The Answer of Cnidaria and Nemertea and Ctenophora and Platyhelminthes is...

Question 9

In sponges, spicules are secreted by amoeboid cells.

Accepted Answer

A) True 
 B)False

Question 10

Figure 31-7 ​
 
Which of the insects in the accompanying figure is a flea?

Accepted Answer

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

Question 11

Diagram the life cycle for a blood fluke and identify all of the stages that the fluke goes through. Compare and contrast this life cycle to that of a beef tapeworm.

Accepted Answer

Concepts to Consider: The blood fluke li

Question 12

You have a sample of cat emesis (vomit) and find worms in the sample. The cylindrical worms are long and slender, pointed at each end, with no other distinguishing characteristics. You conclude they are members of which phylum?

Accepted Answer

A)  Platyhelminthes 
B)  Nematoda 
C)  Cnidaria 
D)  Annelida 
E)  Nemertea 
A)  Platyhelminthes 
B)  Nematoda 
C)  Cnidaria 
D)  Annelida 
E)  Nemertea

Question 13

Arthropods with mandibles, a single pair of antennae, and two legs on most body segments are:

Accepted Answer

A)  ribbon worms 
B)  centipedes 
C)  millipedes 
D)  trilobites 
E)  mites 
A)  ribbon worms 
B)  centipedes 
C)  millipedes 
D)  trilobites 
E)  mites

Question 14

Which of the following animals helps to maintain fertile soil?

Accepted Answer

A)  polychaetes 
B)  leeches 
C)  tapeworms 
D)  hookworms 
E)  earthworms 
A)  polychaetes 
B)  leeches 
C)  tapeworms 
D)  hookworms 
E)  earthworms

Question 15

Figure 31-1 ​
 
Refer to the accompanying figure. Asexual reproduction is occurring at which point?

Accepted Answer

A)  1 
B)  3 
C)  4 
D)  7 
E)  9 
A)  1 
B)  3 
C)  4 
D)  7 
E)  9

Question 16

Ctenophores capture food:

Accepted Answer

A)  with filter feeders 
B)  using adhesive glue cells that trap prey 
C)  with stinging hair cells that immobilize small invertebrates 
D)  by digging through the bottom mud for small invertebrates 
E)  with a sticky mucus on their tentacles that capture small invertebrates 
A)  with filter feeders 
B)  using adhesive glue cells that trap prey 
C)  with stinging hair cells that immobilize small invertebrates 
D)  by digging through the bottom mud for small invertebrates 
E)  with a sticky mucus on their tentacles that capture small invertebrates

Question 17

Which of the following is NOT characteristic of cnidarians?

Accepted Answer

A)  They are mostly marine. 
B)  They have radial symmetry. 
C)  They have one body shape, known as medusa. 
D)  They have cells that contain stinging organelles. 
E)  There is only one opening into the gastrovascular cavity. 
A)  They are mostly marine. 
B)  They have radial symmetry. 
C)  They have one body shape, known as medusa. 
D)  They have cells that contain stinging organelles. 
E)  There is only one opening into the gastrovascular cavity.

Question 18

Which of the mollusks have a closed circulatory system?

Accepted Answer

A)  clams 
B)  slugs 
C)  snails 
D)  squids 
E)  chitons 
A)  clams 
B)  slugs 
C)  snails 
D)  squids 
E)  chitons

Question 19

Which of the following is an adaptation that enables cephalopods to escape from their predators?

Accepted Answer

A)  torsion 
B)  a hard shell 
C)  a modified radula 
D)  rapidly changing colors 
E)  poisonous salivary secretions 
A)  torsion 
B)  a hard shell 
C)  a modified radula 
D)  rapidly changing colors 
E)  poisonous salivary secretions

Question 20

Figure 31-4 ​
 
Refer to the accompanying figure. What is the structure labeled as 6?

Accepted Answer

A)  anus 
B)  gills 
C)  cilia 
D)  mouth 
E)  digestive tract 
A)  anus 
B)  gills 
C)  cilia 
D)  mouth 
E)  digestive tract

Exam 31: Sponges, Cnidarians, Ctenophores, and Protostomes

What is a disadvantage to having an exoskeleton?

What is the mode of nutrition for most Poriferans?

A nauplius larva is characteristic of:

Which of the following species has been used for centuries to draw blood from areas swollen by poisonous stings and bites?

Which of the following is characteristic of flatworms?

In sponges, spicules are secreted by amoeboid cells.

Figure 31-7 ​ Which of the insects in the accompanying figure is a flea?

Diagram the life cycle for a blood fluke and identify all of the stages that the fluke goes through. Compare and contrast this life cycle to that of a beef tapeworm.

You have a sample of cat emesis (vomit) and find worms in the sample. The cylindrical worms are long and slender, pointed at each end, with no other distinguishing characteristics. You conclude they are members of which phylum?

Arthropods with mandibles, a single pair of antennae, and two legs on most body segments are:

Which of the following animals helps to maintain fertile soil?

Figure 31-1 ​ Refer to the accompanying figure. Asexual reproduction is occurring at which point?

Ctenophores capture food:

Which of the following is NOT characteristic of cnidarians?

Which of the mollusks have a closed circulatory system?

Which of the following is an adaptation that enables cephalopods to escape from their predators?

Figure 31-4 ​ Refer to the accompanying figure. What is the structure labeled as 6?

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 31-7 Which of the insects in the accompanying figure is a flea?

Figure 31-1 Refer to the accompanying figure. Asexual reproduction is occurring at which point?

Figure 31-4 Refer to the accompanying figure. What is the structure labeled as 6?