Question 1

Four of the five structures listed below are common in mollusks.Select the exception.

Accepted Answer

A) gills 
B) head and foot 
C) mantle 
D) carapace 
E) radula 
A) gills 
B) head and foot 
C) mantle 
D) carapace 
E) radula

Question 2

Four of the five animals listed below are protostomes.Select the exception.

Accepted Answer

A) clam 
B) sea star 
C) earthworm 
D) tick 
E) roundworm 
A) clam 
B) sea star 
C) earthworm 
D) tick 
E) roundworm

Question 3

Trichoplax

Accepted Answer

A) is a small, flattened, soft-bodied marine animal. 
B) is placed with sponges on the animal family tree. 
C) has the smallest genome of all the animals. 
D) has no mouth but rather uses extracellular digestion and absorption. 
E) fits all of these descriptions. 
A) is a small, flattened, soft-bodied marine animal. 
B) is placed with sponges on the animal family tree. 
C) has the smallest genome of all the animals. 
D) has no mouth but rather uses extracellular digestion and absorption. 
E) fits all of these descriptions.

Question 4

Which of the following groups contains organisms that produce free-living larvae?

Accepted Answer

A) cnidarians 
B) echinoderms 
C) arthropods 
D) cnidarians and echinoderms 
E) cnidarians, echinoderms, and arthropods 
A) cnidarians 
B) echinoderms 
C) arthropods 
D) cnidarians and echinoderms 
E) cnidarians, echinoderms, and arthropods

Question 5

Use the figure above to answer questions
  
-A cell type that secretes skeletal support elements and digests and transports food is indicated by

Accepted Answer

A) A. 
B) B. 
C) C. 
D) D. 
E) E. 
A) A. 
B) B. 
C) C. 
D) D. 
E) E.

Question 6

Based on the criterion of segmentation, which organism most closely resembles the earliest ancestral arthropod?

Accepted Answer

A) dragonfly 
B) millipede 
C) tick 
D) crab 
E) scorpion 
A) dragonfly 
B) millipede 
C) tick 
D) crab 
E) scorpion

Question 7

Which is false regarding the GGC gene?

Accepted Answer

A) It is present in humans, mollusks, and insects. 
B) It codes for an enzyme that regulates pattern formation in cone shells. 
C) It is more than 500 million years old. 
D) Today the enzyme product of the gene has different functions in different lineages. 
E) None of these are false. 
A) It is present in humans, mollusks, and insects. 
B) It codes for an enzyme that regulates pattern formation in cone shells. 
C) It is more than 500 million years old. 
D) Today the enzyme product of the gene has different functions in different lineages. 
E) None of these are false.

Question 8

An organism that possesses a scolex and proglottids lacks

Accepted Answer

A) bilateral symmetry. 
B) a coelom. 
C) mesodermal tissue. 
D) bilateral symmetry and a coelom. 
E) bilateral symmetry, a coelom, and mesodermal tissue. 
A) bilateral symmetry. 
B) a coelom. 
C) mesodermal tissue. 
D) bilateral symmetry and a coelom. 
E) bilateral symmetry, a coelom, and mesodermal tissue.

Question 9

Use the figure above to answer questions
  
-A cell type that helps to pull water through the sponge and strains out food particles is indicated by

Accepted Answer

A) A. 
B) B. 
C) C. 
D) D. 
E) E. 
A) A. 
B) B. 
C) C. 
D) D. 
E) E.

Question 10

Use the figure above to answer questions 
  
-This organism is a

Accepted Answer

A) bivalve. 
B) gastropod. 
C) chiton. 
D) cephalopod. 
E) nudibranch. 
A) bivalve. 
B) gastropod. 
C) chiton. 
D) cephalopod. 
E) nudibranch.

Question 11

Hookworms, pinworms, and guinea worms are

Accepted Answer

A) roundworms. 
B) flatworms. 
C) annelids. 
D) circular worms. 
E) flukes. 
A) roundworms. 
B) flatworms. 
C) annelids. 
D) circular worms. 
E) flukes.

Question 12

Which of the following belongs to the phylum characterized by a mantle and a radula?

Accepted Answer

A) lobster 
B) rotifer 
C) octopus 
D) sand dollar 
E) polychaete 
A) lobster 
B) rotifer 
C) octopus 
D) sand dollar 
E) polychaete

Question 13

Which annelid structure resembles the ancestral structure from which the vertebrate kidney evolved?

Accepted Answer

A) trachea 
B) nephridium 
C) mantle 
D) parapods 
E) all of these 
A) trachea 
B) nephridium 
C) mantle 
D) parapods 
E) all of these

Question 14

Cephalopods are the only mollusks that possess

Accepted Answer

A) a mantle. 
B) gills. 
C) a closed circulatory system. 
D) shells. 
E) a closed circulatory system and shells. 
A) a mantle. 
B) gills. 
C) a closed circulatory system. 
D) shells. 
E) a closed circulatory system and shells.

Question 15

Which of the following do NOT include parasites?

Accepted Answer

A) flatworms 
B) roundworms 
C) rotifers 
D) cnidarians 
E) rotifers and cnidarians 
A) flatworms 
B) roundworms 
C) rotifers 
D) cnidarians 
E) rotifers and cnidarians

Question 16

Which statement is false about cephalopods?

Accepted Answer

A) They were dominant predators of the sea 500 million years ago. 
B) They had an elaborately chambered shell in the past. 
C) All but one modern species has either a reduced shell or none at all. 
D) Adaptive radiation of fishes led to selection pressures favoring speed and a large brain. 
E) They have an open circulatory system. 
A) They were dominant predators of the sea 500 million years ago. 
B) They had an elaborately chambered shell in the past. 
C) All but one modern species has either a reduced shell or none at all. 
D) Adaptive radiation of fishes led to selection pressures favoring speed and a large brain. 
E) They have an open circulatory system.

Question 17

Bivalves lack which of the following molluscan features?

Accepted Answer

A) foot 
B) radula 
C) mantle 
D) shells 
E) visceral mass 
A) foot 
B) radula 
C) mantle 
D) shells 
E) visceral mass

Question 18

Use the figure above to answer questions 
  
-A structure used in rapid escape or pursuit is indicated by letter

Accepted Answer

A) A. 
B) B. 
C) C. 
D) D. 
E) E. 
A) A. 
B) B. 
C) C. 
D) D. 
E) E.

Question 19

All of the following are considered to be members of the four most important insect lineages EXCEPT

Accepted Answer

A) dipterans. 
B) coleopterans. 
C) hymenopterans. 
D) crustaceans. 
E) lepidopterans. 
A) dipterans. 
B) coleopterans. 
C) hymenopterans. 
D) crustaceans. 
E) lepidopterans.

Question 20

Poriferans are

Accepted Answer

A) herbivores. 
B) filter feeders. 
C) scavengers. 
D) predators. 
E) carnivores. 
A) herbivores. 
B) filter feeders. 
C) scavengers. 
D) predators. 
E) carnivores.

Exam 25: Animals: the Invertebrates

Four of the five structures listed below are common in mollusks.Select the exception.

Four of the five animals listed below are protostomes.Select the exception.

Trichoplax

Which of the following groups contains organisms that produce free-living larvae?

Use the figure above to answer questions -A cell type that secretes skeletal support elements and digests and transports food is indicated by

Based on the criterion of segmentation, which organism most closely resembles the earliest ancestral arthropod?

Which is false regarding the GGC gene?

An organism that possesses a scolex and proglottids lacks

Use the figure above to answer questions -A cell type that helps to pull water through the sponge and strains out food particles is indicated by

Use the figure above to answer questions -This organism is a

Hookworms, pinworms, and guinea worms are

Which of the following belongs to the phylum characterized by a mantle and a radula?

Which annelid structure resembles the ancestral structure from which the vertebrate kidney evolved?

Cephalopods are the only mollusks that possess

Which of the following do NOT include parasites?

Which statement is false about cephalopods?

Bivalves lack which of the following molluscan features?

Use the figure above to answer questions -A structure used in rapid escape or pursuit is indicated by letter

All of the following are considered to be members of the four most important insect lineages EXCEPT

Poriferans are

Invitation to Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure and Function

A Closer Look at Cell Membranes

Ground Rules of Metabolism

Where It Startsphotosynthesis

Energy-Releasing Pathways

How Cells Reproduce

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Dna Structure and Function

From Dna to Protein

Controls Over Genes

Recombinant Dna and Genetic Engineering

The Macroevolutionary Puzzle

Emergence of Evolutionary Thought

Organizing Information About Species

The Origin and Evolution of Life

Viruses and Prokaryotes

Protists the Simplest Eukaryotes

Plants

Fungi

Animal Evolution the Chordates

Human Evolution: a Case Study

Plant Tissues

Plant Nutrition and Transport

Plant Reproduction

Plant Growth and Development

Animal Tissues and Organ Systems

Neural Control

Sensory Perception

Endocrine Control

Protection, Support, and Movement

Circulation

Immunity

Respiration

Digestion and Human Nutrition

Maintaining the Internal Environment

Animal Reproductive Systems

Animal Development

Animal Behavior

Population Ecology

Community Structure and Biodiversity

Ecosystems

The Biosphere

Human Impacts on the Biosphere

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