Question 1

Most representatives of the phylum Porifera gain nutrition as:

Accepted Answer

A) parasites. 
B) predators. 
C) autotrophs. 
D) herbivores. 
E) suspension feeders. 
A) parasites. 
B) predators. 
C) autotrophs. 
D) herbivores. 
E) suspension feeders.

Question 2

__________ are parasites that infect humans and, as adults, reside in the small intestines of the host.

Accepted Answer

A) Pinworms 
B) Ascarid worms 
C) Trichina worms 
D) Rotifers 
E) Caenorhabditis elegans 
A) Pinworms 
B) Ascarid worms 
C) Trichina worms 
D) Rotifers 
E) Caenorhabditis elegans

Question 3

After embryonic development, members of the phylum Rotifera are incapable of:

Accepted Answer

A) locomotion. 
B) cell division. 
C) ingestion. 
D) reproduction. 
E) excretion. 
A) locomotion. 
B) cell division. 
C) ingestion. 
D) reproduction. 
E) excretion.

Question 4

The intermediate host for many flukes is a:

Accepted Answer

A) human. 
B) cow. 
C) dog. 
D) cat. 
E) snail. 
A) human. 
B) cow. 
C) dog. 
D) cat. 
E) snail.

Question 5

Among the scyphozoans, the __________ stage is reduced or absent.

Accepted Answer

A) polyp 
B) hydra 
C) medusa 
D) larval 
E) juvenile 
A) polyp 
B) hydra 
C) medusa 
D) larval 
E) juvenile

Question 6

MATCHING
Match the organism or its characteristic with the correct phylum.
a.Annelida
f.Nematoda
b.Arthropoda
g.Nemertea
c.Cnidaria
H.Platyhelminthes
d.Ctenophora
I.Porifera
e.Mollusca
J.Rotifera
-How do planarians survive without a circulatory system?

Accepted Answer

Concepts to Consider: Planarians are usu

Question 7

Maxillae are used to bite and grind food.
____________________

Accepted Answer

A) True 
 B)False

Question 8

Figure 31-3
Use the figure to answer the corresponding question(s).  
-The structure shown in Figure 31-3 is from an animal in phylum:

Accepted Answer

A) CestodA. 
B) TurbellariA. 
C) TrematodA. 
D) MonogeneA. 
E) Platyhelminthes. 
A) CestodA. 
B) TurbellariA. 
C) TrematodA. 
D) MonogeneA. 
E) Platyhelminthes.

Question 9

Figure 31-7
Use the figure to answer the corresponding question(s).  
-The adaptation that allows insects to blend into the background might be represented by:

Accepted Answer

A) the grass in a yarD. 
B) the color of a building. 
C) the instar of grasshoppers. 
D) the leaves on a treE. 
E) tinted windows in a car. 
A) the grass in a yarD. 
B) the color of a building. 
C) the instar of grasshoppers. 
D) the leaves on a treE. 
E) tinted windows in a car.

Question 10

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 11

If flatworms lacked protonephridia:

Accepted Answer

A) they would not be able to reproducE. 
B) they would not be considered to be hermaphrodites. 
C) they would have difficulty with orientation. 
D) they would have difficulty with fluid balancE. 
E) they would have difficulty sensing prey. 
A) they would not be able to reproducE. 
B) they would not be considered to be hermaphrodites. 
C) they would have difficulty with orientation. 
D) they would have difficulty with fluid balancE. 
E) they would have difficulty sensing prey.

Question 12

MATCHING
Match the organism or its characteristic with the correct phylum.
a.Annelida
f.Nematoda
b.Arthropoda
g.Nemertea
c.Cnidaria
H.Platyhelminthes
d.Ctenophora
I.Porifera
e.Mollusca
J.Rotifera
-comb jellies

Accepted Answer

The answer of MATCHING
Match the organism or its characteristic with...

Question 13

Members of the phylum __________ are the simplest organisms that have a separate mouth and anus.

Accepted Answer

A) Platyhelminthes 
B) Ctenophora 
C) Cnidaria 
D) Porifera 
E) Placozoa 
A) Platyhelminthes 
B) Ctenophora 
C) Cnidaria 
D) Porifera 
E) Placozoa

Question 14

Like the cnidarians, flatworms depend on __________ for achieving circulation and gas exchangE.

Accepted Answer

A) blood 
B) hemolymph 
C) diffusion 
D) hearts 
E) lungs 
A) blood 
B) hemolymph 
C) diffusion 
D) hearts 
E) lungs

Question 15

Most sponges are __________, meaning that one individual can produce both male and female gametes.

Accepted Answer

A) asexual 
B) hermaphroditic 
C) indeterminate 
D) heterozygous 
E) enterocoelous 
A) asexual 
B) hermaphroditic 
C) indeterminate 
D) heterozygous 
E) enterocoelous

Question 16

MATCHING
Match the organism or its characteristic with the correct phylum.
a.Annelida
f.Nematoda
b.Arthropoda
g.Nemertea
c.Cnidaria
H.Platyhelminthes
d.Ctenophora
I.Porifera
e.Mollusca
J.Rotifera
-oysters

Accepted Answer

The answer of MATCHING
Match the organism or its characteristic with...

Question 17

Members of the Ecdysozoa are characterized by having a cuticle.
____________________

Accepted Answer

A) True 
 B)False

Question 18

Which of the following are in the class Anthozoa?

Accepted Answer

A) Hydra 
B) Obelia 
C) Cyanea 
D) corals 
E) jellyfish 
A) Hydra 
B) Obelia 
C) Cyanea 
D) corals 
E) jellyfish

Question 19

Figure 31-6
Use the figure to answer the corresponding question(s).  
-__________ is an anticoagulant used by leeches.

Accepted Answer

A) Chitin 
B) Calcium carbonate 
C) Hirudin 
D) Pheromone 
E) Saxitoxin 
A) Chitin 
B) Calcium carbonate 
C) Hirudin 
D) Pheromone 
E) Saxitoxin

Question 20

Figure 31-6
Use the figure to answer the corresponding question(s).  
-Refer to Figure 31-6.The structures labeled 3 are involved in:

Accepted Answer

A) reproduction. 
B) respiration. 
C) excretion. 
D) sensory pathways. 
E) movement. 
A) reproduction. 
B) respiration. 
C) excretion. 
D) sensory pathways. 
E) movement.

Exam 31: Sponges, Cnidarians, Ctenophores, and Protostomes

Most representatives of the phylum Porifera gain nutrition as:

__________ are parasites that infect humans and, as adults, reside in the small intestines of the host.

After embryonic development, members of the phylum Rotifera are incapable of:

The intermediate host for many flukes is a:

Among the scyphozoans, the __________ stage is reduced or absent.

MATCHING Match the organism or its characteristic with the correct phylum. a.Annelida f.Nematoda b.Arthropoda g.Nemertea c.Cnidaria H.Platyhelminthes d.Ctenophora I.Porifera e.Mollusca J.Rotifera -How do planarians survive without a circulatory system?

Maxillae are used to bite and grind food. ____________________

Figure 31-3 Use the figure to answer the corresponding question(s). -The structure shown in Figure 31-3 is from an animal in phylum:

Figure 31-7 Use the figure to answer the corresponding question(s). -The adaptation that allows insects to blend into the background might be represented by:

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

If flatworms lacked protonephridia:

MATCHING Match the organism or its characteristic with the correct phylum. a.Annelida f.Nematoda b.Arthropoda g.Nemertea c.Cnidaria H.Platyhelminthes d.Ctenophora I.Porifera e.Mollusca J.Rotifera -comb jellies

Members of the phylum __________ are the simplest organisms that have a separate mouth and anus.

Like the cnidarians, flatworms depend on __________ for achieving circulation and gas exchangE.

Most sponges are __________, meaning that one individual can produce both male and female gametes.

MATCHING Match the organism or its characteristic with the correct phylum. a.Annelida f.Nematoda b.Arthropoda g.Nemertea c.Cnidaria H.Platyhelminthes d.Ctenophora I.Porifera e.Mollusca J.Rotifera -oysters

Members of the Ecdysozoa are characterized by having a cuticle. ____________________

Which of the following are in the class Anthozoa?

Figure 31-6 Use the figure to answer the corresponding question(s). -__________ is an anticoagulant used by leeches.

Figure 31-6 Use the figure to answer the corresponding question(s). -Refer to Figure 31-6.The structures labeled 3 are involved in:

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

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