Question 1

Parasitic tapeworms are members of the phylum

Accepted Answer

A)  Platyhelminthes. 
B)  Cnidaria. 
C)  Arthropoda. 
D)  Nematoda. 
E)  Annelida. 
A)  Platyhelminthes. 
B)  Cnidaria. 
C)  Arthropoda. 
D)  Nematoda. 
E)  Annelida.

Question 2

How many tissue layers are in the embryos of sponges?

Accepted Answer

A)  None 
B)  One 
C)  Two 
D)  Three 
E)  Four 
A)  None 
B)  One 
C)  Two 
D)  Three 
E)  Four

Question 3

The simplest multicellular animals that have only a few different cell types are

Accepted Answer

A)  sponges. 
B)  sea squirts. 
C)  flatworms. 
D)  jellyfish. 
E)  anemones. 
A)  sponges. 
B)  sea squirts. 
C)  flatworms. 
D)  jellyfish. 
E)  anemones.

Question 4

Your job is to classify a newly discovered animal species. Your initial studies reveal that your specimen has tissues, organs, and a head; has no body cavity or segmentation; and has bilateral symmetry. To what phylum does this animal belong?

Accepted Answer

A)  Cnidaria 
B)  Mollusca 
C)  Annelida 
D)  Platyhelminthes 
E)  Porifera 
A)  Cnidaria 
B)  Mollusca 
C)  Annelida 
D)  Platyhelminthes 
E)  Porifera

Question 5

Which of the following characteristics is often associated with animals that are radially symmetrical?

Accepted Answer

A)  Gastrovascular cavity 
B)  Cephalization 
C)  Sessile or otherwise nonmobile 
D)  Mesoderm 
E)  Mobility 
A)  Gastrovascular cavity 
B)  Cephalization 
C)  Sessile or otherwise nonmobile 
D)  Mesoderm 
E)  Mobility

Question 6

A cnidarian, which is radially symmetrical, has _________germ layer(s).

Accepted Answer

A)  no 
B)  one 
C)  two 
D)  three 
E)  four 
A)  no 
B)  one 
C)  two 
D)  three 
E)  four

Question 7

How does the skeletal system of an arachnid differ from that of a cephalopod?

Accepted Answer

Arachnids have an exoskeleton

Question 8

Members of the taxonomic group _________are best described as having a large, well -developed brain, having excellent vision, and being marine carnivorous predators.

Accepted Answer

A)  bivalves 
B)  cephalopods 
C)  oligochaetes 
D)  insects 
E)  gastropods 
A)  bivalves 
B)  cephalopods 
C)  oligochaetes 
D)  insects 
E)  gastropods

Question 9

The low energy demands of nematodes allow them to survive without a

Accepted Answer

A)  body cavity. 
B)  tubular gut. 
C)  reproductive system. 
D)  skeleton. 
E)  respiratory system. 
A)  body cavity. 
B)  tubular gut. 
C)  reproductive system. 
D)  skeleton. 
E)  respiratory system.

Question 10

Your job is to classify a newly discovered animal species. Your initial studies reveal that your specimen has tissues, organs, a head, and a coelom; has no segmentation; and has bilateral symmetry. To what phylum does this animal belong?

Accepted Answer

A)  Cnidaria 
B)  Mollusca 
C)  Annelida 
D)  Platyhelminthes 
E)  Porifera 
A)  Cnidaria 
B)  Mollusca 
C)  Annelida 
D)  Platyhelminthes 
E)  Porifera

Question 11

The leeches used by doctors to prevent blood clotting and stimulate the growth of blood vessels in patients recovering from reconstructive surgery are members of the phylum

Accepted Answer

A)  Cnidaria. 
B)  Nematoda. 
C)  Arthropoda. 
D)  Platyhelminthes. 
E)  Annelida. 
A)  Cnidaria. 
B)  Nematoda. 
C)  Arthropoda. 
D)  Platyhelminthes. 
E)  Annelida.

Question 12

The venomous sea wasp is classified in the phylum

Accepted Answer

A)  Cnidaria. 
B)  Mollusca. 
C)  Nematoda. 
D)  Arthropoda. 
E)  Annelida. 
A)  Cnidaria. 
B)  Mollusca. 
C)  Nematoda. 
D)  Arthropoda. 
E)  Annelida.

Question 13

The endoskeleton of an echinoderm is composed of

Accepted Answer

A)  cellulose. 
B)  silica. 
C)  lignan. 
D)  chitin. 
E)  calcium carbonate. 
A)  cellulose. 
B)  silica. 
C)  lignan. 
D)  chitin. 
E)  calcium carbonate.

Question 14

Hydra, anemones, and jellyfish are in the phylum

Accepted Answer

A)  Protista. 
B)  Platyhelminthes. 
C)  Flagellates. 
D)  Cnidaria. 
E)  Porifera. 
A)  Protista. 
B)  Platyhelminthes. 
C)  Flagellates. 
D)  Cnidaria. 
E)  Porifera.

Question 15

A cnidarian that builds a calcium carbonate skeleton is a(n)

Accepted Answer

A)  snail. 
B)  crab. 
C)  oyster. 
D)  clam. 
E)  coral. 
A)  snail. 
B)  crab. 
C)  oyster. 
D)  clam. 
E)  coral.

Question 16

An animal such as a grasshopper can conserve water because it has an elaborately branching system of tubes within its body that it uses for gas exchange. These tubes are called

Accepted Answer

A)  gills. 
B)  flame cells. 
C)  tracheae. 
D)  book lungs. 
E)  kidneys. 
A)  gills. 
B)  flame cells. 
C)  tracheae. 
D)  book lungs. 
E)  kidneys.

Question 17

Sponges have

Accepted Answer

A)  an exoskeleton. 
B)  a gastrovascular cavity. 
C)  a nerve net. 
D)  spicules. 
E)  muscles. 
A)  an exoskeleton. 
B)  a gastrovascular cavity. 
C)  a nerve net. 
D)  spicules. 
E)  muscles.

Question 18

If someone discovered a new compound that stops metamorphosis at the larval stage, what would be the benefits and drawbacks of this pesticide for humans?

Accepted Answer

On the positive side, the organisms woul

Question 19

An arthropod embryo has _________germ layer(s).

Accepted Answer

A)  no 
B)  one 
C)  two 
D)  three 
E)  four 
A)  no 
B)  one 
C)  two 
D)  three 
E)  four

Question 20

Charles Darwin wrote that members of the phylum_________ are particularly important for agriculture because they mix and aerate soil.

Accepted Answer

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

Exam 24: Animal Diversity I: Invertebrates

Parasitic tapeworms are members of the phylum

How many tissue layers are in the embryos of sponges?

The simplest multicellular animals that have only a few different cell types are

Your job is to classify a newly discovered animal species. Your initial studies reveal that your specimen has tissues, organs, and a head; has no body cavity or segmentation; and has bilateral symmetry. To what phylum does this animal belong?

Which of the following characteristics is often associated with animals that are radially symmetrical?

A cnidarian, which is radially symmetrical, has _________germ layer(s).

How does the skeletal system of an arachnid differ from that of a cephalopod?

Members of the taxonomic group _________are best described as having a large, well -developed brain, having excellent vision, and being marine carnivorous predators.

The low energy demands of nematodes allow them to survive without a

Your job is to classify a newly discovered animal species. Your initial studies reveal that your specimen has tissues, organs, a head, and a coelom; has no segmentation; and has bilateral symmetry. To what phylum does this animal belong?

The leeches used by doctors to prevent blood clotting and stimulate the growth of blood vessels in patients recovering from reconstructive surgery are members of the phylum

The venomous sea wasp is classified in the phylum

The endoskeleton of an echinoderm is composed of

Hydra, anemones, and jellyfish are in the phylum

A cnidarian that builds a calcium carbonate skeleton is a(n)

An animal such as a grasshopper can conserve water because it has an elaborately branching system of tubes within its body that it uses for gas exchange. These tubes are called

Sponges have

If someone discovered a new compound that stops metamorphosis at the larval stage, what would be the benefits and drawbacks of this pesticide for humans?

An arthropod embryo has _________germ layer(s).

Charles Darwin wrote that members of the phylum_________ are particularly important for agriculture because they mix and aerate soil.

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Capturing Solar Energy: Photosynthesis

Harvesting Energy: Glycolysis and Cellular Respiration

Cellular Reproduction

Meiosis: the Basis of Sexual Reproduction

Patterns of Inheritance

DNA: The Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

The History of Life

Systematics: Seeking Order Amid Diversity

The Diversity of Prokaryotes and Viruses

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity Ii: Vertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

Energy Flow and Nutrient Cycling in Ecosystems

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Circulation

Respiration

Nutrition and Digestion

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

The Senses

Action and Support: the Muscles and Skeleton

Animal Reproduction

Animal Development

Plant Anatomy and Nutrient Transport

Plant Reproduction and Development

Plant Responses to the Environment

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