Question 1

How many planes divide the body of a biradially symmetric animal into two equal parts?

Accepted Answer

A)  none 
B)  1 
C)  2 
D)  4 
E)  more than 4 
A)  none 
B)  1 
C)  2 
D)  4 
E)  more than 4 C

Question 2

Diploblastic animals, such as cnidarians and __________, have only two germ layers, ectoderm and __________.

Accepted Answer

A)  sponges; ectoderm 
B)  sponges; mesoderm 
C)  ctenophores; mesoderm 
D)  ctenophores; endoderm 
E)  ctenophores; metaderm 
A)  sponges; ectoderm 
B)  sponges; mesoderm 
C)  ctenophores; mesoderm 
D)  ctenophores; endoderm 
E)  ctenophores; metaderm D

Question 3

How do protostomes differ from deuterostomes?

Accepted Answer

A)  Protostomes are diploblastic. 
B)  Protostomes have radial symmetry. 
C)  The first opening that develops in protostomes is the anus. 
D)  Protostomes undergo spiral cleavage during development. 
E)  Protostomes undergo indeterminate cleavage during development. 
A)  Protostomes are diploblastic. 
B)  Protostomes have radial symmetry. 
C)  The first opening that develops in protostomes is the anus. 
D)  Protostomes undergo spiral cleavage during development. 
E)  Protostomes undergo indeterminate cleavage during development. D

Question 4

Animals share a common origin with choanoflagellates.
____________________

Accepted Answer

A) True 
 B)False

Question 5

Figure 30-1
Use the figure to answer the corresponding question(s).  
-How can radial symmetry be an advantage to slow-moving or sessile marine organisms?

Accepted Answer

Radial symmetry allows equal distributio

Question 6

All of the following are characteristic of life in a marine environment except?

Accepted Answer

A)  Many nutrients and gases are dissolved in the water and are readily available. 
B)  Buoyancy helps to support the organisms. 
C)  Currents may wash organisms away from suitable habitats. 
D)  Osmotic balance is very difficult for invertebrates to maintain. 
E)  Temperatures are relatively stable. 
A)  Many nutrients and gases are dissolved in the water and are readily available. 
B)  Buoyancy helps to support the organisms. 
C)  Currents may wash organisms away from suitable habitats. 
D)  Osmotic balance is very difficult for invertebrates to maintain. 
E)  Temperatures are relatively stable.

Question 7

Ctenophores exhibit:

Accepted Answer

A)  bilateral symmetry. 
B)  spherical symmetry. 
C)  linear symmetry. 
D)  radial symmetry. 
E)  circular symmetry. 
A)  bilateral symmetry. 
B)  spherical symmetry. 
C)  linear symmetry. 
D)  radial symmetry. 
E)  circular symmetry.

Question 8

Hox genes have been identified in:

Accepted Answer

A)  bilaterally symmetric animals only. 
B)  radially symmetric animals only. 
C)  asymmetric animals only. 
D)  both asymmetic and radially symmetric animals only. 
E)  both bilaterally symmetric and radially symmetric animals only. 
A)  bilaterally symmetric animals only. 
B)  radially symmetric animals only. 
C)  asymmetric animals only. 
D)  both asymmetic and radially symmetric animals only. 
E)  both bilaterally symmetric and radially symmetric animals only.

Question 9

To include your eyes and ears in the same section, you would need to cut your body in which plane?

Accepted Answer

A)  median 
B)  frontal 
C)  sagittal 
D)  transverse 
E)  cephalic 
A)  median 
B)  frontal 
C)  sagittal 
D)  transverse 
E)  cephalic

Question 10

The adult form of which of the following animals is not capable of locomotion?

Accepted Answer

A)  sponges 
B)  jellyfish 
C)  ctenophores 
D)  planarians 
E)  flukes 
A)  sponges 
B)  jellyfish 
C)  ctenophores 
D)  planarians 
E)  flukes

Question 11

Which of the following words are incorrectly paired?

Accepted Answer

A)  head end-anterior 
B)  coelom-body cavity 
C)  schizocoelous development-deuterostome 
D)  shelled egg-internal fertilization 
E)  mesoderm-muscles 
A)  head end-anterior 
B)  coelom-body cavity 
C)  schizocoelous development-deuterostome 
D)  shelled egg-internal fertilization 
E)  mesoderm-muscles

Question 12

In most deuterostomes, the mesoderm forms by:

Accepted Answer

A)  duplication of the ectoderm. 
B)  schizocoely. 
C)  migration. 
D)  enterocoely. 
E)  blastocoely. 
A)  duplication of the ectoderm. 
B)  schizocoely. 
C)  migration. 
D)  enterocoely. 
E)  blastocoely.

Question 13

Within the kingdom Animalia there are about:

Accepted Answer

A)  325 phyla. 
B)  16 classes. 
C)  32 classes. 
D)  35 phyla. 
E)  6 phyla. 
A)  325 phyla. 
B)  16 classes. 
C)  32 classes. 
D)  35 phyla. 
E)  6 phyla.

Question 14

Radial cleavage is found in the:

Accepted Answer

A)  arthropods. 
B)  mollusks. 
C)  echinoderms. 
D)  annelids. 
E)  cnidarians. 
A)  arthropods. 
B)  mollusks. 
C)  echinoderms. 
D)  annelids. 
E)  cnidarians.

Question 15

Pseudocoelomates have a body cavity that is not completely lined with __________.These animals include __________ and roundworms.

Accepted Answer

A)  endoderm; nemerteans 
B)  endoderm; flatworms 
C)  mesoderm; rotifers 
D)  mesoderm; flatworms 
E)  mesoderm; nemerteans 
A)  endoderm; nemerteans 
B)  endoderm; flatworms 
C)  mesoderm; rotifers 
D)  mesoderm; flatworms 
E)  mesoderm; nemerteans

Question 16

The lining of the digestive tube is formed from:

Accepted Answer

A)  endoderm. 
B)  ectoderm. 
C)  germ cells. 
D)  mesoderm. 
E)  pseudoderm. 
A)  endoderm. 
B)  ectoderm. 
C)  germ cells. 
D)  mesoderm. 
E)  pseudoderm.

Question 17

The cephalic end of an animal is toward its head.
____________________

Accepted Answer

A) True 
 B)False

Question 18

A true coelom develops within the ectoderm.
____________________

Accepted Answer

A) True 
 B)False

Question 19

Which of the following was not an adaptation for animals to live on land?

Accepted Answer

A)  internal fertilization 
B)  egg shell 
C)  embryo development within the female 
D)  external respiratory surfaces 
E)  skeletal system and muscles 
A)  internal fertilization 
B)  egg shell 
C)  embryo development within the female 
D)  external respiratory surfaces 
E)  skeletal system and muscles

Question 20

Which of the following is not a reason to explain why fewer animals live in freshwater than in the ocean?

Accepted Answer

A)  Freshwater is generally hypotonic to tissue fluids. 
B)  Freshwater generally has a less constant temperature environment. 
C)  Freshwater generally has a less constant oxygen environment. 
D)  Freshwater generally is more turbid. 
E)  Freshwater generally contains less food. 
A)  Freshwater is generally hypotonic to tissue fluids. 
B)  Freshwater generally has a less constant temperature environment. 
C)  Freshwater generally has a less constant oxygen environment. 
D)  Freshwater generally is more turbid. 
E)  Freshwater generally contains less food.

Exam 30: An Introduction to Animal Diversity

How many planes divide the body of a biradially symmetric animal into two equal parts?

Diploblastic animals, such as cnidarians and __________, have only two germ layers, ectoderm and __________.

How do protostomes differ from deuterostomes?

Animals share a common origin with choanoflagellates. ____________________

Figure 30-1 Use the figure to answer the corresponding question(s). -How can radial symmetry be an advantage to slow-moving or sessile marine organisms?

All of the following are characteristic of life in a marine environment except?

Ctenophores exhibit:

Hox genes have been identified in:

To include your eyes and ears in the same section, you would need to cut your body in which plane?

The adult form of which of the following animals is not capable of locomotion?

Which of the following words are incorrectly paired?

In most deuterostomes, the mesoderm forms by:

Within the kingdom Animalia there are about:

Radial cleavage is found in the:

Pseudocoelomates have a body cavity that is not completely lined with __________.These animals include __________ and roundworms.

The lining of the digestive tube is formed from:

The cephalic end of an animal is toward its head. ____________________

A true coelom develops within the ectoderm. ____________________

Which of the following was not an adaptation for animals to live on land?

Which of the following is not a reason to explain why fewer animals live in freshwater than in the ocean?

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

Sponges, Cnidarians, Ctenophores, and Protostomes

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

Diploblastic animals, such as cnidarians and , have only two germ layers, ectoderm and .

Pseudocoelomates have a body cavity that is not completely lined with .These animals include and roundworms.