Question 1

The majority of crustaceans live in ____.

Accepted Answer

A)  bodies of freshwater 
B)  tropical rain forests 
C)  marine habitats 
D)  wetlands 
E)  grasslands 
A)  bodies of freshwater 
B)  tropical rain forests 
C)  marine habitats 
D)  wetlands 
E)  grasslands

Question 2

Animals of the phylum ____ are likely to have an exoskeleton.

Accepted Answer

A)  Mollusca 
B)  Arthropoda 
C)  Nematoda 
D)  Chordata 
E)  Annelida 
A)  Mollusca 
B)  Arthropoda 
C)  Nematoda 
D)  Chordata 
E)  Annelida

Question 3

You find an animal that has a flexible cuticle,longitudinal muscles,a complete digestive system,and a false coelom.What is its most likely identity?

Accepted Answer

A)  A nematode 
B)  A cnidarian 
C)  A flatworm 
D)  An echinoderm 
E)  A sponge 
A)  A nematode 
B)  A cnidarian 
C)  A flatworm 
D)  An echinoderm 
E)  A sponge

Question 4

The oldest widely accepted evidence of animals is trace fossils dating to the final period of the Precambrian (635-541 million years ago)known as

Accepted Answer

A)  Devonian. 
B)  Proterozoic. 
C)  Cambrian. 
D)  Jurassic. 
E)  Ediacaran. 
A)  Devonian. 
B)  Proterozoic. 
C)  Cambrian. 
D)  Jurassic. 
E)  Ediacaran.

Question 5

Choose the most appropriate answer for each.
-mollusks

Accepted Answer

A) two pairs of legs per segment 
B) Arachnids 
C) planarians, flukes, tapeworms 
D) Nematodes 
E) snails, squids, clams
F)Mollusca
G)sessile suspension feeders
H)jellyfish and corals
I)crustaceans, ticks, and insects
J)polychaetes, earthworms, leeches
K)sea urchins, sea stars 
A) two pairs of legs per segment 
B) Arachnids 
C) planarians, flukes, tapeworms 
D) Nematodes 
E) snails, squids, clams
F)Mollusca
G)sessile suspension feeders
H)jellyfish and corals
I)crustaceans, ticks, and insects
J)polychaetes, earthworms, leeches
K)sea urchins, sea stars

Question 6

You find an organism that possesses many bristles and parapodia that it uses to burrow.What is it most likely to be?

Accepted Answer

A)  Millipede 
B)  Tapeworm 
C)  Polychaete 
D)  Hookworm 
E)  Flatworm 
A)  Millipede 
B)  Tapeworm 
C)  Polychaete 
D)  Hookworm 
E)  Flatworm

Question 7

___________,such as sea stars,are invertebrate members of the deuterostome lineage.

Accepted Answer

The answer of ___________,such as sea stars,are invertebrate members of...

Question 8

__________ are multicelled heterotrophs without cell walls.

Accepted Answer

The answer of __________ are multicelled heterotrophs without cell walls....

Question 9

Choose the most appropriate answer for each.
-millipede

Accepted Answer

A) two pairs of legs per segment 
B) Arachnids 
C) planarians, flukes, tapeworms 
D) Nematodes 
E) snails, squids, clams
F)Mollusca
G)sessile suspension feeders
H)jellyfish and corals
I)crustaceans, ticks, and insects
J)polychaetes, earthworms, leeches
K)sea urchins, sea stars 
A) two pairs of legs per segment 
B) Arachnids 
C) planarians, flukes, tapeworms 
D) Nematodes 
E) snails, squids, clams
F)Mollusca
G)sessile suspension feeders
H)jellyfish and corals
I)crustaceans, ticks, and insects
J)polychaetes, earthworms, leeches
K)sea urchins, sea stars

Question 10

Figure 24.9
  
-In the accompanying figure,a feeding polyp in the mature colony is identified by the number

Accepted Answer

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

Question 11

You find a wormlike arthropod with a flattened body and carnivorous eating habits.It would most likely be identified as a ____.

Accepted Answer

A)  crustacean 
B)  millipede 
C)  spider 
D)  trilobite 
E)  centipede 
A)  crustacean 
B)  millipede 
C)  spider 
D)  trilobite 
E)  centipede

Question 12

Which statement is true of deuterostomes?

Accepted Answer

A)  The second opening into the embryo becomes the anus. 
B)  They have two tissue layers. 
C)  The second opening into the embryo becomes the mouth. 
D)  The first opening into the embryo becomes the mouth. 
E)  They are typically radially symmetrical. 
A)  The second opening into the embryo becomes the anus. 
B)  They have two tissue layers. 
C)  The second opening into the embryo becomes the mouth. 
D)  The first opening into the embryo becomes the mouth. 
E)  They are typically radially symmetrical.

Question 13

Classification. Respond to the following statements in reference to the five animal phyla listed below.
-Although most members are enclosed by hardened shells,this phylum name literally means "soft body."

Accepted Answer

A) Annelida 
B) Arthropoda 
C) Mollusca 
D) Echinodermata 
E) Cnidaria 
A) Annelida 
B) Arthropoda 
C) Mollusca 
D) Echinodermata 
E) Cnidaria

Question 14

The ____ are the most diverse animal group.

Accepted Answer

A)  vertebrates 
B)  insects 
C)  humans 
D)  protozoans 
E)  mollusks 
A)  vertebrates 
B)  insects 
C)  humans 
D)  protozoans 
E)  mollusks

Question 15

Choose the most appropriate answer for each.
-chelicerates

Accepted Answer

A) two pairs of legs per segment 
B) Arachnids 
C) planarians, flukes, tapeworms 
D) Nematodes 
E) snails, squids, clams
F)Mollusca
G)sessile suspension feeders
H)jellyfish and corals
I)crustaceans, ticks, and insects
J)polychaetes, earthworms, leeches
K)sea urchins, sea stars 
A) two pairs of legs per segment 
B) Arachnids 
C) planarians, flukes, tapeworms 
D) Nematodes 
E) snails, squids, clams
F)Mollusca
G)sessile suspension feeders
H)jellyfish and corals
I)crustaceans, ticks, and insects
J)polychaetes, earthworms, leeches
K)sea urchins, sea stars

Question 16

In annelids,____ regulate the composition of body fluid.

Accepted Answer

The answer of In annelids,____ regulate the composition of body...

Question 17

The __________ have an unsegmented body,a cuticle that is molted,a complete gut,and a pseudocoelom.

Accepted Answer

roundworms

Question 18

Figure24.6
 
-In the accompanying figure,a cell type that helps to pull water through the sponge and strains out food particles is identified by the number ____.

Accepted Answer

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

Question 19

Classification. Respond to the following statements in reference to the five animal phyla listed below.
-The larval stage in this phylum has bilateral symmetry,whereas the adult stage exhibits radial symmetry.

Accepted Answer

A) Annelida 
B) Arthropoda 
C) Mollusca 
D) Echinodermata 
E) Cnidaria 
A) Annelida 
B) Arthropoda 
C) Mollusca 
D) Echinodermata 
E) Cnidaria

Question 20

During mating of earthworms,which secretory organ produces mucus that glues two worms together while they swap the sperm?

Accepted Answer

A)  Clitellum 
B)  Coelomic fluid 
C)  Chaetae 
D)  Gills 
E)  Radula 
A)  Clitellum 
B)  Coelomic fluid 
C)  Chaetae 
D)  Gills 
E)  Radula

Exam 24: Animal Evolution: The Invertebrates

The majority of crustaceans live in ____.

Animals of the phylum ____ are likely to have an exoskeleton.

You find an animal that has a flexible cuticle,longitudinal muscles,a complete digestive system,and a false coelom.What is its most likely identity?

The oldest widely accepted evidence of animals is trace fossils dating to the final period of the Precambrian (635-541 million years ago)known as

Choose the most appropriate answer for each. -mollusks

You find an organism that possesses many bristles and parapodia that it uses to burrow.What is it most likely to be?

___________,such as sea stars,are invertebrate members of the deuterostome lineage.

__________ are multicelled heterotrophs without cell walls.

Choose the most appropriate answer for each. -millipede

Figure 24.9 -In the accompanying figure,a feeding polyp in the mature colony is identified by the number

You find a wormlike arthropod with a flattened body and carnivorous eating habits.It would most likely be identified as a ____.

Which statement is true of deuterostomes?

Classification. Respond to the following statements in reference to the five animal phyla listed below. -Although most members are enclosed by hardened shells,this phylum name literally means "soft body."

The ____ are the most diverse animal group.

Choose the most appropriate answer for each. -chelicerates

In annelids,____ regulate the composition of body fluid.

The __________ have an unsegmented body,a cuticle that is molted,a complete gut,and a pseudocoelom.

Figure24.6 -In the accompanying figure,a cell type that helps to pull water through the sponge and strains out food particles is identified by the number ____.

Classification. Respond to the following statements in reference to the five animal phyla listed below. -The larval stage in this phylum has bilateral symmetry,whereas the adult stage exhibits radial symmetry.

During mating of earthworms,which secretory organ produces mucus that glues two worms together while they swap the sperm?

Invitation to Biology

Life's Chemical Bases

Molecules of Life

Cell Structure

Ground Rules of Metabolism

Where it Starts—Photosynthesis

How Cells Release Chemical Energy

DNA Structure and Function

From DNA to Protein

Control of Gene Expression

How Cells Reproduce

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Studying and Manipulating Genomes

Evidence of Evolution

Processes of Evolution

Organizing Information about Species

Life's Origin and Early Evolution

Viruses, Bacteria, and Archaea

Protists: The Simplest Eukaryotes

The Land Plants

Fungi

Animal Evolution: The Chordates

Human Evolution

Plant Tissues

Plant Nutrition and Transport

Life Cycles of Flowering Plants

Communication Strategies in Plants

Animal Tissues and Organ Systems

Neural Control

Sensory Perception

Endocrine Control

Structural Support and Movement

Circulation

Immunity

Respiration

Digestion and Nutrition

Maintaining the Internal Environment

Animal Reproductive System

Animal Development

Animal Behavior

Population Ecology

Community Ecology

Ecosystems

The Biosphere

Human Impacts on the Biosphere

Filters