Question 1

Trematodes have a body covering known as a ______________.

Accepted Answer

The answer of Trematodes have a body covering known as...

Question 2

Humans become infected with Taenia saginatus when they

Accepted Answer

A)  eat poorly cooked fish. 
B)  eat poorly cooked pork. 
C)  eat poorly cooked beef. 
D)  eat unwashed salads. 
E)  All of the choices are correct 
A)  eat poorly cooked fish. 
B)  eat poorly cooked pork. 
C)  eat poorly cooked beef. 
D)  eat unwashed salads. 
E)  All of the choices are correct

Question 3

The main reproductive body "segment" of the cestode is called the ____________.

Accepted Answer

The answer of The main reproductive body "segment" of the...

Question 4

Which of the following organisms lives between sand grains and wasn't described until 2000?

Accepted Answer

A)  Micrognathozoans 
B)  Rotifers 
C)  Gastrotrichs 
D)  Acanthocephalans 
A)  Micrognathozoans 
B)  Rotifers 
C)  Gastrotrichs 
D)  Acanthocephalans

Question 5

In flame cells,

Accepted Answer

A)  light is detected. 
B)  ciliated sperm are stored. 
C)  undigested food is expelled. 
D)  slow fires burn food for energy. 
E)  cilia drive fluids through tubules for excretion. 
A)  light is detected. 
B)  ciliated sperm are stored. 
C)  undigested food is expelled. 
D)  slow fires burn food for energy. 
E)  cilia drive fluids through tubules for excretion.

Question 6

Taenia solium is a dangerous tapeworm because humans can serve as its ______________ host.

Accepted Answer

The answer of Taenia solium is a dangerous tapeworm because...

Question 7

In tapeworms,the region just behind the scolex where new proglottids are differentiated is the

Accepted Answer

A)  vitellaria. 
B)  pilidium. 
C)  strobila. 
D)  hydatid. 
E)  germinative zone. 
A)  vitellaria. 
B)  pilidium. 
C)  strobila. 
D)  hydatid. 
E)  germinative zone.

Question 8

The correct sequence of development in a typical fluke life cycle is

Accepted Answer

A)  egg, miracidium, cercaria, sporocyst. 
B)  egg, miracidium, sporocyst, cercaria. 
C)  egg, sporocyst, cercaria, miracidium. 
D)  egg, cercaria, miracidium, sporocyst. 
E)  egg, sporocyst, miracidium, cercaria. 
A)  egg, miracidium, cercaria, sporocyst. 
B)  egg, miracidium, sporocyst, cercaria. 
C)  egg, sporocyst, cercaria, miracidium. 
D)  egg, cercaria, miracidium, sporocyst. 
E)  egg, sporocyst, miracidium, cercaria.

Question 9

A special cysticercus called a _______ grows slowly but can proliferate thousands of scolices to infect a carnivore.

Accepted Answer

A)  Hydatid cyst 
B)  Pilidium larvae 
C)  Cysticercosis 
D)  Vitellaria 
E)  Rhynchocoel 
A)  Hydatid cyst 
B)  Pilidium larvae 
C)  Cysticercosis 
D)  Vitellaria 
E)  Rhynchocoel

Question 10

Most monogeneans are external parasites of ____________.

Accepted Answer

The answer of Most monogeneans are external parasites of ____________....

Question 11

Since flatworms and ribbon worms lack a coelom or a pseudocoel,they are termed _____________ animals.

Accepted Answer

The answer of Since flatworms and ribbon worms lack a...

Question 12

The mastix of a rotifer is used for

Accepted Answer

A)  respiration. 
B)  capturing and grinding food. 
C)  swimming. 
D)  pumping blood. 
A)  respiration. 
B)  capturing and grinding food. 
C)  swimming. 
D)  pumping blood.

Question 13

Rotifers that are "hunters" protect their hard jaws or _____ to seize prey.

Accepted Answer

A)  Mastix 
B)  Trochal 
C)  Lorica 
D)  Trophi 
A)  Mastix 
B)  Trochal 
C)  Lorica 
D)  Trophi

Question 14

The monogenetic flukes

Accepted Answer

A)  are mostly ectoparasites. 
B)  are usually found in rabbits. 
C)  require an intermediate and a definitive host. 
D)  All of the choices are correct 
E)  None of the choices are correct 
A)  are mostly ectoparasites. 
B)  are usually found in rabbits. 
C)  require an intermediate and a definitive host. 
D)  All of the choices are correct 
E)  None of the choices are correct

Question 15

Which of the following is not a characteristic of Trochophore larvae?

Accepted Answer

A)  Have a prominent circlet of cilia 
B)  Are top-shaped 
C)  They occur in the early development of marine forms of Annelida 
D)  Their bodies are opaque 
E)  They sometimes contain accessory cilia circlets 
A)  Have a prominent circlet of cilia 
B)  Are top-shaped 
C)  They occur in the early development of marine forms of Annelida 
D)  Their bodies are opaque 
E)  They sometimes contain accessory cilia circlets

Question 16

Ribbon worms are

Accepted Answer

A)  carnivores in most cases. 
B)  nearly all marine dwellers. 
C)  nonparasitic. 
D)  mostly dioecious. 
E)  All of the choices are correct 
A)  carnivores in most cases. 
B)  nearly all marine dwellers. 
C)  nonparasitic. 
D)  mostly dioecious. 
E)  All of the choices are correct

Question 17

If eggs or proglottids of the pork tapeworm are ingested,

Accepted Answer

A)  a hydatid cyst may form. 
B)  nothing will form since we have to contract pork tapeworm from eating undercooked pork. 
C)  cysticercosis may occur with resulting blindness or death. 
D)  we may contract more pork tapeworms hanging in our intestine. 
E)  None of the choices are correct 
A)  a hydatid cyst may form. 
B)  nothing will form since we have to contract pork tapeworm from eating undercooked pork. 
C)  cysticercosis may occur with resulting blindness or death. 
D)  we may contract more pork tapeworms hanging in our intestine. 
E)  None of the choices are correct

Question 18

Humans become infected with lung flukes by

Accepted Answer

A)  eating infected fish. 
B)  eating infected crabs or crayfish. 
C)  drinking water contaminated with eggs. 
D)  wading in infected waters. 
E)  eating undercooked pork. 
A)  eating infected fish. 
B)  eating infected crabs or crayfish. 
C)  drinking water contaminated with eggs. 
D)  wading in infected waters. 
E)  eating undercooked pork.

Question 19

Fertilization in rotifers is acheived

Accepted Answer

A)  externally with both eggs and sperm shed into the water. 
B)  by normal copulation of a penis and vaginal pore. 
C)  by transfer of sperm in a gelatinous spermatophore packet. 
D)  by hypodermic impregnation injecting sperm into the pseudocoel. 
A)  externally with both eggs and sperm shed into the water. 
B)  by normal copulation of a penis and vaginal pore. 
C)  by transfer of sperm in a gelatinous spermatophore packet. 
D)  by hypodermic impregnation injecting sperm into the pseudocoel.

Question 20

Rotifers combine ovaries and yolk glands to form a _____ that supplies yolk to eggs through cytoplasmic bridges.

Accepted Answer

A)  Mastax 
B)  Trochal 
C)  Lorica 
D)  Germovitellaria 
A)  Mastax 
B)  Trochal 
C)  Lorica 
D)  Germovitellaria

Exam 14: Acoelomorpha,Platyzoa,and Mesozoa

Trematodes have a body covering known as a ______________.

Humans become infected with Taenia saginatus when they

The main reproductive body "segment" of the cestode is called the ____________.

Which of the following organisms lives between sand grains and wasn't described until 2000?

In flame cells,

Taenia solium is a dangerous tapeworm because humans can serve as its ______________ host.

In tapeworms,the region just behind the scolex where new proglottids are differentiated is the

The correct sequence of development in a typical fluke life cycle is

A special cysticercus called a _______ grows slowly but can proliferate thousands of scolices to infect a carnivore.

Most monogeneans are external parasites of ____________.

Since flatworms and ribbon worms lack a coelom or a pseudocoel,they are termed _____________ animals.

The mastix of a rotifer is used for

Rotifers that are "hunters" protect their hard jaws or _____ to seize prey.

The monogenetic flukes

Which of the following is not a characteristic of Trochophore larvae?

Ribbon worms are

If eggs or proglottids of the pork tapeworm are ingested,

Humans become infected with lung flukes by

Fertilization in rotifers is acheived

Rotifers combine ovaries and yolk glands to form a _____ that supplies yolk to eggs through cytoplasmic bridges.

Life: Biological Principles and the Science of Zoology

The Origin and Chemistry of Life

Cells As Units of Life

Cellular Metabolism

Genetics: a Review

Organic Evolution

The Reproductive Process

Principles of Development

Architectural Pattern of an Animal

Taxonomy and Phylogeny of Animals

Unicellular Eukaryotes

Sponges and Placozoans

Radiate Animals

Polyzoa and Kryptrochozoa

Molluscs

Annelids and Allied Taxa

Smaller Ecdysozoans

Trilobites, Chelicerates, and Myriapods

Crustaceans

Support, Protection, and Movement

Chaetognaths, Echinoderms, and Hemichordates

Chordates

Fishes

Early Tetrapods and Modern Amphibians

Amniote Origins and Nonavian Reptiles

Birds

Mammals

Support, protection, and Movement

Homeostasis: Osmotic Regulation, Excretion, and Temperature Regulation

Homeostasis: Internal Fluids and Respiration

Digestion and Nutrition

Nervous Coordination: Nervous System and Sense Organs

Chemical Coordination: Endocrine System

Immunity

Animal Behavior

Animal Distributions

Animal Ecology

Filters