Question 1

The simple eyespots seen in most turbellarians are called

Accepted Answer

A) ocelli. 
B) auricles. 
C) statocysts. 
D) chemoreceptors. 
E) plasmids. 
A) ocelli. 
B) auricles. 
C) statocysts. 
D) chemoreceptors. 
E) plasmids.

Question 2

In turbellarian nervous systems,neurons carrying information to the brain are __________ neurons.

Accepted Answer

A) connector 
B) sensory 
C) receptor 
D) association 
E) motor 
A) connector 
B) sensory 
C) receptor 
D) association 
E) motor

Question 3

The encysted larval stage of a digenetic fluke is called the

Accepted Answer

A) oncomiracidium. 
B) sporocyst. 
C) metacercaria. 
D) redia. 
E) oncocercaria. 
A) oncomiracidium. 
B) sporocyst. 
C) metacercaria. 
D) redia. 
E) oncocercaria.

Question 4

The tapeworm strobila is made of many repeated units called

Accepted Answer

A) proglottids. 
B) opercula. 
C) scolices. 
D) acetabula. 
E) miracidia. 
A) proglottids. 
B) opercula. 
C) scolices. 
D) acetabula. 
E) miracidia.

Question 5

__________ are rodlike cells of the turbellarian epidermis that swell and form a protective mucous sheath around the body.

Accepted Answer

A) Endocytes 
B) Mucocytes 
C) Ectocytes 
D) Rhabdites 
E) Flame cells 
A) Endocytes 
B) Mucocytes 
C) Ectocytes 
D) Rhabdites 
E) Flame cells

Question 6

Which of the functions listed below is NOT a function of the parenchyma of the platyhelminthes?

Accepted Answer

A) provide skeletal support 
B) nutrient storage 
C) oxygen storage 
D) production of gametes 
E) transport of materials 
A) provide skeletal support 
B) nutrient storage 
C) oxygen storage 
D) production of gametes 
E) transport of materials

Question 7

What is true regarding members of the following phyla: Ectoprocta,Brachiopoda,Annelida,and Mollusca?

Accepted Answer

A) They possess a lophophore and/or trochophore larvae. 
B) They all have a cuticle. 
C) They all have a pseudocoelom. 
D) They all have a proboscis that is protruded during feeding. 
A) They possess a lophophore and/or trochophore larvae. 
B) They all have a cuticle. 
C) They all have a pseudocoelom. 
D) They all have a proboscis that is protruded during feeding.

Question 8

In the rotifer class __________,amictic eggs develop exclusively by parthenogenesis.

Accepted Answer

A) Phasmidia 
B) Secernentea 
C) Seisonidea 
D) Monogononta 
E) Bdelloidea 
A) Phasmidia 
B) Secernentea 
C) Seisonidea 
D) Monogononta 
E) Bdelloidea

Question 9

The _______ layer of a fluke is composed of carbohydrates and proteins and helps protect the fluke from the host's enzymes and antibodies.

Accepted Answer

A) syncytium 
B) tegument 
C) glycocalyx 
D) cuticle 
E) plasmodium 
A) syncytium 
B) tegument 
C) glycocalyx 
D) cuticle 
E) plasmodium

Question 10

The epidermis of a fluke has an outer layer called the __________,which forms a syncytium.

Accepted Answer

A) plasmodium 
B) opisthaptor 
C) pellicle 
D) cuticle 
E) tegument 
A) plasmodium 
B) opisthaptor 
C) pellicle 
D) cuticle 
E) tegument

Question 11

Asexual reproduction by fission in some turbellarians results in a chain of individuals called __________ that later will become independent individuals.

Accepted Answer

A) larvae 
B) zooids 
C) buds 
D) cocoons 
E) bursae 
A) larvae 
B) zooids 
C) buds 
D) cocoons 
E) bursae

Question 12

Among the flatworms,when a digestive tract is present,it has

Accepted Answer

A) a single opening, the mouth. 
B) two openings, mouth and anus. 
C) a single opening, the anus. 
D) no external opening. 
E) a nephridiopore opening. 
A) a single opening, the mouth. 
B) two openings, mouth and anus. 
C) a single opening, the anus. 
D) no external opening. 
E) a nephridiopore opening.

Question 13

Nemerteans differ from flatworms in that they possess

Accepted Answer

A) a heart. 
B) one way circulation in blood vessels. 
C) a complete digestive tract. 
D) both male and female reproductive structures in the same individual. 
E) a plerocercoid larvae. 
A) a heart. 
B) one way circulation in blood vessels. 
C) a complete digestive tract. 
D) both male and female reproductive structures in the same individual. 
E) a plerocercoid larvae.

Question 14

Which of the following is not true of the turbellarian gastrodermis?

Accepted Answer

A) It secretes digestive enzymes. 
B) It absorbs digested food. 
C) It contains smooth muscle cells. 
D) It consists of a single layer of cells. 
E) It is derived embryologically from endoderm. 
A) It secretes digestive enzymes. 
B) It absorbs digested food. 
C) It contains smooth muscle cells. 
D) It consists of a single layer of cells. 
E) It is derived embryologically from endoderm.

Question 15

Rotifers are

Accepted Answer

A) primarily marine. 
B) relatively large. 
C) characterized by a corona and mastax. 
D) characterized by populations dominated by males. 
E) not eutelic. 
A) primarily marine. 
B) relatively large. 
C) characterized by a corona and mastax. 
D) characterized by populations dominated by males. 
E) not eutelic.

Question 16

Tapeworms lack

Accepted Answer

A) reproductive organs. 
B) a mouth and digestive tract. 
C) excretory structures. 
D) holdfast structures. 
E) a tegument. 
A) reproductive organs. 
B) a mouth and digestive tract. 
C) excretory structures. 
D) holdfast structures. 
E) a tegument.

Question 17

Rotifers exchange respiratory gases

Accepted Answer

A) across the body surface. 
B) through gills. 
C) through lungs. 
D) with a tracheal system. 
E) with dermal branchiae. 
A) across the body surface. 
B) through gills. 
C) through lungs. 
D) with a tracheal system. 
E) with dermal branchiae.

Question 18

Most flukes belong to the subclass

Accepted Answer

A) Aspidogastrea. 
B) Monogenea. 
C) Eucestoda. 
D) Cestodaria. 
E) Digenea. 
A) Aspidogastrea. 
B) Monogenea. 
C) Eucestoda. 
D) Cestodaria. 
E) Digenea.

Question 19

The osmoregulatory organs of turbellarians are called

Accepted Answer

A) contractile vacuoles. 
B) kidneys. 
C) metanephridia. 
D) mesonephridia. 
E) protonephridia. 
A) contractile vacuoles. 
B) kidneys. 
C) metanephridia. 
D) mesonephridia. 
E) protonephridia.

Question 20

The larval stage of members of class Monogenea is called the

Accepted Answer

A) redia. 
B) oncosphere. 
C) sporocyst. 
D) oncomiracidium. 
E) cercaria. 
A) redia. 
B) oncosphere. 
C) sporocyst. 
D) oncomiracidium. 
E) cercaria.

Exam 10: The Smaller Lophotrochozoan Phyla

The simple eyespots seen in most turbellarians are called

In turbellarian nervous systems,neurons carrying information to the brain are __________ neurons.

The encysted larval stage of a digenetic fluke is called the

The tapeworm strobila is made of many repeated units called

__________ are rodlike cells of the turbellarian epidermis that swell and form a protective mucous sheath around the body.

Which of the functions listed below is NOT a function of the parenchyma of the platyhelminthes?

What is true regarding members of the following phyla: Ectoprocta,Brachiopoda,Annelida,and Mollusca?

In the rotifer class __________,amictic eggs develop exclusively by parthenogenesis.

The _______ layer of a fluke is composed of carbohydrates and proteins and helps protect the fluke from the host's enzymes and antibodies.

The epidermis of a fluke has an outer layer called the __________,which forms a syncytium.

Asexual reproduction by fission in some turbellarians results in a chain of individuals called __________ that later will become independent individuals.

Among the flatworms,when a digestive tract is present,it has

Nemerteans differ from flatworms in that they possess

Which of the following is not true of the turbellarian gastrodermis?

Rotifers are

Tapeworms lack

Rotifers exchange respiratory gases

Most flukes belong to the subclass

The osmoregulatory organs of turbellarians are called

The larval stage of members of class Monogenea is called the

Zoology: an Evolutionary and Ecological Perspective

Cells, tissues, organs, and Organ Systems of Animals

Cell Division and Inheritance

Evolution: History and Evidence

Evolution and Gene Frequencies

Ecology: Preserving the Animal Kingdom

Animal Taxonomy, phylogeny, and Organization

Animal-Like Protists: the Protozoa

Multicellular and Tissue Levels of Organization

Molluscan Success

Annelida: the Metameric Body Form

The Smaller Ecdysozoan Phyla

The Arthropods: Blueprint for Success

The Pancrustacea: Crustacea and Hexapoda

Ambulacraria: Echinoderms and Hemichordates

Chordata: Urochordata and Cephalochordata

The Fishes: Vertebrate Success in Water

Amphibians: the First Terrestrial Vertebrates

Reptiles: Diapsid Amniotes

Birds: Reptiles by Another Name

Mammals: Synapsid Amniotes

Protection, support, and Movement

Communication I: Nervous and Sensory Systems

Communication II: the Endocrine System and Chemical Messengers

Circulation and Gas Exchange

Nutrition and Digestion

Temperature and Body Fluid Regulation

Reproduction and Development

Filters