Question 1

What is the mode of nutrition for most Poriferans?

Accepted Answer

A)  parasites 
B)  autotrophs 
C)  carnivores 
D)  herbivores 
E)  suspension feeders 
A)  parasites 
B)  autotrophs 
C)  carnivores 
D)  herbivores 
E)  suspension feeders E

Question 2

Match between columns
                        Premises: ribbon worms
leeches
trichina worms
squids
spiders
tapeworms
flatworms
comb jellies
"wheel animals"
roundworms
corals
sponges
centipedes
earthworms
lobsters
snails and slugs

Accepted Answer

The Answer of Rotifera and Ctenophora and Arthropoda and Porifera is...

Question 3

Cephalopods have a(n) open circulatory system. 
____________________

Accepted Answer

A) True 
 B)False  False

Question 4

Malpighian tubules are used for excretion. 
____________________

Accepted Answer

A) True 
 B)False

Question 5

The larvae of some cnidarians are known as ____ larvae.

Accepted Answer

A)  trochophore 
B)  nauplius 
C)  planula 
D)  veliger 
E)  zoea 
A)  trochophore 
B)  nauplius 
C)  planula 
D)  veliger 
E)  zoea

Question 6

What is a disadvantage to having an exoskeleton?

Accepted Answer

A)  Exoskeletons interfere with ingestion. 
B)  Exoskeletons severely limit locomotion. 
C)  Exoskeletons do not prevent desiccation. 
D)  Exoskeletons do not provide adequate protection from predators. 
E)  Exoskeletons must be shed when the animal grows, exposing the animal to predators. 
A)  Exoskeletons interfere with ingestion. 
B)  Exoskeletons severely limit locomotion. 
C)  Exoskeletons do not prevent desiccation. 
D)  Exoskeletons do not provide adequate protection from predators. 
E)  Exoskeletons must be shed when the animal grows, exposing the animal to predators.

Question 7

For the subphyla of arthropods discussed in this chapter, make a table listing the name, identifying characteristics, and two member organisms for each subphylum. BONUS: Identify and correctly place the arthropod classes in each subphylum and identify a representative of each class.

Accepted Answer

Your table should re

Question 8

An elongate uniramid with many legs as well as poison claws is known as a(n):

Accepted Answer

A)  mite. 
B)  tick. 
C)  insect. 
D)  centipede. 
E)  millipede. 
A)  mite. 
B)  tick. 
C)  insect. 
D)  centipede. 
E)  millipede.

Question 9

How do planarians survive without a circulatory system?

Accepted Answer

Concepts to Consider: Planarians are usu

Question 10

Most mollusks are:

Accepted Answer

A)  found in fresh water. 
B)  terrestrial. 
C)  parasitic. 
D)  arboreal. 
E)  marine. 
A)  found in fresh water. 
B)  terrestrial. 
C)  parasitic. 
D)  arboreal. 
E)  marine.

Question 11

Gas exchange in arachnids takes place by tracheal tubes, ____, or both.

Accepted Answer

A)  gills 
B)  mandibles 
C)  book lungs 
D)  metanephridia 
E)  protonephridia 
A)  gills 
B)  mandibles 
C)  book lungs 
D)  metanephridia 
E)  protonephridia

Question 12

Which class of animals has the largest number of species?

Accepted Answer

A)  Arachnida 
B)  Insecta 
C)  Gastropoda 
D)  Bivalvia 
E)  Arthropoda 
A)  Arachnida 
B)  Insecta 
C)  Gastropoda 
D)  Bivalvia 
E)  Arthropoda

Question 13

Sponges are believed to have arisen from the choanoflagellates because they possess:

Accepted Answer

A)  amebocytes. 
B)  collar cells. 
C)  spongin. 
D)  spicules. 
E)  oscula. 
A)  amebocytes. 
B)  collar cells. 
C)  spongin. 
D)  spicules. 
E)  oscula.

Question 14

A nauplius larva is characteristic of:

Accepted Answer

A)  molluscs. 
B)  gastropods. 
C)  echinoderms. 
D)  crustaceans. 
E)  ctenophores. 
A)  molluscs. 
B)  gastropods. 
C)  echinoderms. 
D)  crustaceans. 
E)  ctenophores.

Question 15

Sea anemones, unlike scyphozoans, have a partitioned gastrovascular cavity. This serves as a means of:

Accepted Answer

A)  harboring enteric bacteria. 
B)  digesting very large food items. 
C)  harboring photosynthetic zooxanthellae. 
D)  decreasing the surface area of the gastrovascular cavity. 
E)  digesting different categories of organic molecules in different areas. 
A)  harboring enteric bacteria. 
B)  digesting very large food items. 
C)  harboring photosynthetic zooxanthellae. 
D)  decreasing the surface area of the gastrovascular cavity. 
E)  digesting different categories of organic molecules in different areas.

Question 16

Maxillae are used to bite and grind food. 
____________________

Accepted Answer

A) True 
 B)False

Question 17

____ is an anticoagulant used by leeches.

Accepted Answer

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

Question 18

Which arthropods have mandibles, gills, excretory glands, and statocysts?

Accepted Answer

A)  mites 
B)  insects 
C)  spiders 
D)  scorpions 
E)  crustaceans 
A)  mites 
B)  insects 
C)  spiders 
D)  scorpions 
E)  crustaceans

Question 19

From an evolutionary perspective, true nerve cells are first seen in the phylum:

Accepted Answer

A)  Porifera. 
B)  Cnidaria. 
C)  Ctenophora. 
D)  Mollusca. 
E)  Arthropoda. 
A)  Porifera. 
B)  Cnidaria. 
C)  Ctenophora. 
D)  Mollusca. 
E)  Arthropoda.

Question 20

You have a sample of cat emesis (vomit) and find worms in the sample. The cylindrical worms are long and slender, pointed at each end, with no other distinguishing characteristics. You conclude they are members of which phylum?

Accepted Answer

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

Exam 31: Sponges, Cnidarians, Ctenophores, and Protostomes

What is the mode of nutrition for most Poriferans?

Cephalopods have a(n) open circulatory system. ____________________

Malpighian tubules are used for excretion. ____________________

The larvae of some cnidarians are known as ____ larvae.

What is a disadvantage to having an exoskeleton?

For the subphyla of arthropods discussed in this chapter, make a table listing the name, identifying characteristics, and two member organisms for each subphylum. BONUS: Identify and correctly place the arthropod classes in each subphylum and identify a representative of each class.

An elongate uniramid with many legs as well as poison claws is known as a(n):

How do planarians survive without a circulatory system?

Most mollusks are:

Gas exchange in arachnids takes place by tracheal tubes, ____, or both.

Which class of animals has the largest number of species?

Sponges are believed to have arisen from the choanoflagellates because they possess:

A nauplius larva is characteristic of:

Sea anemones, unlike scyphozoans, have a partitioned gastrovascular cavity. This serves as a means of:

Maxillae are used to bite and grind food. ____________________

____ is an anticoagulant used by leeches.

Which arthropods have mandibles, gills, excretory glands, and statocysts?

From an evolutionary perspective, true nerve cells are first seen in the phylum:

You have a sample of cat emesis (vomit) and find worms in the sample. The cylindrical worms are long and slender, pointed at each end, with no other distinguishing characteristics. You conclude they are members of which phylum?

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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