Question 1

Flatworms have a coelom that is only partially surrounded with mesoderm. True or False?

Accepted Answer

A) True 
 B)False

Question 2

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 3

Oysters are classified in the phylum:

Accepted Answer

A) Echinodermata. 
B) Mollusca. 
C) Annelida. 
D) Platyhelminthes. 
E) Arthropoda. 
A) Echinodermata. 
B) Mollusca. 
C) Annelida. 
D) Platyhelminthes. 
E) Arthropoda.

Question 4

Which of the following characteristics is associated with all animals that are bilaterally symmetrical at some point in their life cycle?

Accepted Answer

A) lack of organs 
B) gastrovascular cavity 
C) coelom 
D) mesoderm 
E) cephalization 
A) lack of organs 
B) gastrovascular cavity 
C) coelom 
D) mesoderm 
E) cephalization

Question 5

The only invertebrates capable of flight are arachnids. True or False?

Accepted Answer

A) True 
 B)False

Question 6

Flatworms that contain both male and female reproductive organs in the same individual are called ________.

Accepted Answer

The answer of Flatworms that contain both male and female...

Question 7

Worms with a well-developed circulatory system (including five pairs of hearts)are:

Accepted Answer

A) platyhelminths. 
B) annelids. 
C) echinoderms. 
D) nematodes. 
E) eels. 
A) platyhelminths. 
B) annelids. 
C) echinoderms. 
D) nematodes. 
E) eels.

Question 8

Within the mollusks, only the cephalopods have a:

Accepted Answer

A) closed circulatory system. 
B) tubular gut. 
C) coelom. 
D) hinged shell. 
E) radula. 
A) closed circulatory system. 
B) tubular gut. 
C) coelom. 
D) hinged shell. 
E) radula.

Question 9

A crayfish is a member of the phylum:

Accepted Answer

A) Echinodermata. 
B) Mollusca. 
C) Annelida. 
D) Platyhelminthes. 
E) Arthropoda. 
A) Echinodermata. 
B) Mollusca. 
C) Annelida. 
D) Platyhelminthes. 
E) Arthropoda.

Question 10

Of all of the invertebrate phyla, only members of the phylum ________ can fly.

Accepted Answer

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

Question 11

The major difference between protostomes and deuterostomes is:

Accepted Answer

A) the presence or absence of a coelom. 
B) the way the body cavity forms. 
C) the presence or absence of cephalization. 
D) the type of body symmetry. 
E) the presence or absence of tissues. 
A) the presence or absence of a coelom. 
B) the way the body cavity forms. 
C) the presence or absence of cephalization. 
D) the type of body symmetry. 
E) the presence or absence of tissues.

Question 12

The endoskeleton of an echinoderm is composed of:

Accepted Answer

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

Question 13

Animals obtain energy through photosynthesis. True or False?

Accepted Answer

A) True 
 B)False

Question 14

A ________ is an organism whose body cavity forms between the body wall and the digestive system.

Accepted Answer

A) sponge 
B) protostome 
C) hermaphrodite 
D) deuterostome 
E) nematode 
A) sponge 
B) protostome 
C) hermaphrodite 
D) deuterostome 
E) nematode

Question 15

The phylum Nematoda includes which of the following very common organisms, some of which are parasitic and most of which are often found in soil?

Accepted Answer

A) segmented worms 
B) roundworms 
C) flatworms 
D) earthworms 
E) tapeworms 
A) segmented worms 
B) roundworms 
C) flatworms 
D) earthworms 
E) tapeworms

Question 16

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

Accepted Answer

A) Cnidaria 
B) Mollusca 
C) Echinodermata 
D) Platyhelminthes 
E) Nematoda 
A) Cnidaria 
B) Mollusca 
C) Echinodermata 
D) Platyhelminthes 
E) Nematoda

Question 17

A hemocoel or blood cavity is found in or associated with:

Accepted Answer

A) all animals. 
B) an open circulatory system. 
C) sponges. 
D) cephalopods. 
E) acoelomates. 
A) all animals. 
B) an open circulatory system. 
C) sponges. 
D) cephalopods. 
E) acoelomates.

Question 18

In the animal kingdom, cephalization is:

Accepted Answer

A) development of a body that has paired structures forming a side-to-side mirror image. 
B) concentration of sensory structures in the head. 
C) the ability to respond rapidly to external stimuli. 
D) evolutionary development of a netlike system of veins. 
E) development of eyes at the anterior end of the organism. 
A) development of a body that has paired structures forming a side-to-side mirror image. 
B) concentration of sensory structures in the head. 
C) the ability to respond rapidly to external stimuli. 
D) evolutionary development of a netlike system of veins. 
E) development of eyes at the anterior end of the organism.

Question 19

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

Question 20

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

Accepted Answer

A) mobility 
B) gastrovascular cavity 
C) sessile or otherwise nonmobile 
D) mesoderm 
E) cephalization 
A) mobility 
B) gastrovascular cavity 
C) sessile or otherwise nonmobile 
D) mesoderm 
E) cephalization

Exam 23: Animal Diversity I: Invertebrates

Flatworms have a coelom that is only partially surrounded with mesoderm. True or False?

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

Oysters are classified in the phylum:

Which of the following characteristics is associated with all animals that are bilaterally symmetrical at some point in their life cycle?

The only invertebrates capable of flight are arachnids. True or False?

Flatworms that contain both male and female reproductive organs in the same individual are called ________.

Worms with a well-developed circulatory system (including five pairs of hearts)are:

Within the mollusks, only the cephalopods have a:

A crayfish is a member of the phylum:

Of all of the invertebrate phyla, only members of the phylum ________ can fly.

The major difference between protostomes and deuterostomes is:

The endoskeleton of an echinoderm is composed of:

Animals obtain energy through photosynthesis. True or False?

A ________ is an organism whose body cavity forms between the body wall and the digestive system.

The phylum Nematoda includes which of the following very common organisms, some of which are parasitic and most of which are often found in soil?

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

A hemocoel or blood cavity is found in or associated with:

In the animal kingdom, cephalization is:

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:

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

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

The Continuity of Life: Cellular 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 Amidst 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

How Do Ecosystems Work

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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