Question 1

The holdfast of a tapeworm is its _______________.

Accepted Answer

scolex

Question 2

The male copulatory organ of turbellarians is called a

Accepted Answer

A)  rhabdite. 
B)  pilidium. 
C)  cirrus. 
D)  hydatid. 
E)  gonopore. 
A)  rhabdite. 
B)  pilidium. 
C)  cirrus. 
D)  hydatid. 
E)  gonopore. C

Question 3

Monogeneans hatch as

Accepted Answer

A)  fully mature adults. 
B)  free-swimming larvae. 
C)  flagellated, amoeboid larvae. 
D)  larvae resembling gemmules of freshwater sponges. 
E)  None of the choices are correct 
A)  fully mature adults. 
B)  free-swimming larvae. 
C)  flagellated, amoeboid larvae. 
D)  larvae resembling gemmules of freshwater sponges. 
E)  None of the choices are correct B

Question 4

Because they have three germ layers,flatworms and ribbon worms are _______________.

Accepted Answer

The answer of Because they have three germ layers,flatworms and...

Question 5

Marine forms of ribbon worms have a ciliated larvae that resembles which of the following?

Accepted Answer

A)  Trochophore 
B)  Planula 
C)  Miracidium 
D)  Gemmule 
E)  None of the choices are correct 
A)  Trochophore 
B)  Planula 
C)  Miracidium 
D)  Gemmule 
E)  None of the choices are correct

Question 6

The blood fluke Schistosoma is

Accepted Answer

A)  an endoparasite and a Monogenean. 
B)  an endoparasite and a Digenean. 
C)  an ectoparasite and a Digenean. 
D)  an ectoparasite and a Monogenean. 
E)  None of the choices are correct 
A)  an endoparasite and a Monogenean. 
B)  an endoparasite and a Digenean. 
C)  an ectoparasite and a Digenean. 
D)  an ectoparasite and a Monogenean. 
E)  None of the choices are correct

Question 7

Turbellarians,such as the planaria,move by

Accepted Answer

A)  flame cells. 
B)  small pseudopodia. 
C)  lateral undulation of muscles. 
D)  expulsion of fluids as seen in squid. 
E)  secreting a slime track of mucus and pushing against it with epidermal cilia and muscular waves. 
A)  flame cells. 
B)  small pseudopodia. 
C)  lateral undulation of muscles. 
D)  expulsion of fluids as seen in squid. 
E)  secreting a slime track of mucus and pushing against it with epidermal cilia and muscular waves.

Question 8

The posterior attachment organ of monogeneans is the ________________.

Accepted Answer

The answer of The posterior attachment organ of monogeneans is...

Question 9

Ribbon worms seize their prey with their ________________.

Accepted Answer

The answer of Ribbon worms seize their prey with their...

Question 10

A planarian feeds by

Accepted Answer

A)  attaching with a sucker and extracting blood. 
B)  scraping and sucking food particles via a midventral proboscis. 
C)  engulfing food particles through an anterior mouth and excreting waste via an anus. 
D)  soaking all nutrients from the environment through its thin epidermal surface. 
E)  sucking nutrients in from the environment through its flame cell system. 
A)  attaching with a sucker and extracting blood. 
B)  scraping and sucking food particles via a midventral proboscis. 
C)  engulfing food particles through an anterior mouth and excreting waste via an anus. 
D)  soaking all nutrients from the environment through its thin epidermal surface. 
E)  sucking nutrients in from the environment through its flame cell system.

Question 11

The name of the free-swimming,ciliated stage that hatches from a trematode egg is the

Accepted Answer

A)  miracidium. 
B)  sporocyst. 
C)  cercaria. 
D)  scolex. 
E)  proglottid. 
A)  miracidium. 
B)  sporocyst. 
C)  cercaria. 
D)  scolex. 
E)  proglottid.

Question 12

Acanthocephalans

Accepted Answer

A)  parasitize birds and mammals. 
B)  are monoecious. 
C)  have a well developed digestive tract. 
D)  are found in the host's liver. 
A)  parasitize birds and mammals. 
B)  are monoecious. 
C)  have a well developed digestive tract. 
D)  are found in the host's liver.

Question 13

Beside "hunters" that seize prey,some rotifers are

Accepted Answer

A)  "netters" that spread a fishing net to ensnare prey. 
B)  "trappers" that grasp prey and draw it into the rotifer mouth. 
C)  "ambushers" that pounce on prey that passes by at a distance. 
D)  "farmers" that grow food to eat. 
A)  "netters" that spread a fishing net to ensnare prey. 
B)  "trappers" that grasp prey and draw it into the rotifer mouth. 
C)  "ambushers" that pounce on prey that passes by at a distance. 
D)  "farmers" that grow food to eat.

Question 14

How are schistosomes unique,compared to other trematodes?

Accepted Answer

A)  They have separate male and female individuals, and the male is larger 
B)  At no stage in their life cycle do they leave the body of the host 
C)  Infections are easy to cure by drugs and surgery 
D)  They strike the rich and the poor, educated and ignorant, alike 
E)  All species must cycle through humans to survive 
A)  They have separate male and female individuals, and the male is larger 
B)  At no stage in their life cycle do they leave the body of the host 
C)  Infections are easy to cure by drugs and surgery 
D)  They strike the rich and the poor, educated and ignorant, alike 
E)  All species must cycle through humans to survive

Question 15

If an individual turbellarian contains organs of both sexes,it is termed ______________ or hermaphroditic.

Accepted Answer

The answer of If an individual turbellarian contains organs of...

Question 16

How could you become infected with adult tapeworms?

Accepted Answer

A)  Eating insufficiently cooked pork 
B)  Being bitten by a mosquito 
C)  Ingesting eggs in contaminated water 
D)  Eating freshly peeled fruit 
E)  All of choices are correct 
A)  Eating insufficiently cooked pork 
B)  Being bitten by a mosquito 
C)  Ingesting eggs in contaminated water 
D)  Eating freshly peeled fruit 
E)  All of choices are correct

Question 17

Which of the following statements is NOT correct?

Accepted Answer

A)  Planaria lack a unique larval stage 
B)  Planaria ingest food through a mouth located in the anterior region 
C)  Flukes have two suckers by which they attach to host tissues 
D)  Tapeworms have a scolex with hooks and suckers, by which they attach to the host's intestinal tissues 
E)  Tapeworms can enter the human body through undercooked meat, especially pork, which contains encysted larval forms 
A)  Planaria lack a unique larval stage 
B)  Planaria ingest food through a mouth located in the anterior region 
C)  Flukes have two suckers by which they attach to host tissues 
D)  Tapeworms have a scolex with hooks and suckers, by which they attach to the host's intestinal tissues 
E)  Tapeworms can enter the human body through undercooked meat, especially pork, which contains encysted larval forms

Question 18

Mesozoans

Accepted Answer

A)  have two cell layers. 
B)  are flat, plate-like animals. 
C)  gave rise to the sponges. 
D)  have calcareous spicules. 
E)  have two germ layers. 
A)  have two cell layers. 
B)  are flat, plate-like animals. 
C)  gave rise to the sponges. 
D)  have calcareous spicules. 
E)  have two germ layers.

Question 19

"Endolecithal" describes a situation in which

Accepted Answer

A)  there is no yolk. 
B)  yolk is contained in separate cells outside the zygote. 
C)  yolk is provided inside the egg cell. 
D)  yolk is found around the perimeter of the zygote. 
E)  yolk is provided by the sperm cell. 
A)  there is no yolk. 
B)  yolk is contained in separate cells outside the zygote. 
C)  yolk is provided inside the egg cell. 
D)  yolk is found around the perimeter of the zygote. 
E)  yolk is provided by the sperm cell.

Question 20

The long chains of bags of eggs,which hang behind the head of a tapeworm,is called a

Accepted Answer

A)  strobila. 
B)  cercariae. 
C)  sporocysts. 
D)  scolex. 
E)  hydatid. 
A)  strobila. 
B)  cercariae. 
C)  sporocysts. 
D)  scolex. 
E)  hydatid.

Exam 14: Acoelomorpha,Platyzoa,and Mesozoa

The holdfast of a tapeworm is its _______________.

The male copulatory organ of turbellarians is called a

Monogeneans hatch as

Because they have three germ layers,flatworms and ribbon worms are _______________.

Marine forms of ribbon worms have a ciliated larvae that resembles which of the following?

The blood fluke Schistosoma is

Turbellarians,such as the planaria,move by

The posterior attachment organ of monogeneans is the ________________.

Ribbon worms seize their prey with their ________________.

A planarian feeds by

The name of the free-swimming,ciliated stage that hatches from a trematode egg is the

Acanthocephalans

Beside "hunters" that seize prey,some rotifers are

How are schistosomes unique,compared to other trematodes?

If an individual turbellarian contains organs of both sexes,it is termed ______________ or hermaphroditic.

How could you become infected with adult tapeworms?

Which of the following statements is NOT correct?

Mesozoans

"Endolecithal" describes a situation in which

The long chains of bags of eggs,which hang behind the head of a tapeworm,is called a

Life: Biological Principles and the Science of Zoology

The Origin and Chemistry of Life

Cells As Units of Life

Cellular Metabolism

Genetics: a Review

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Taxonomy and Phylogeny of Animals

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Early Tetrapods and Modern Amphibians

Amniote Origins and Nonavian Reptiles

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Homeostasis: Osmotic Regulation, Excretion, and Temperature Regulation

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Nervous Coordination: Nervous System and Sense Organs

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