Ch.29 Animal Plant: Lophotrochozoans Flashcards

1
Q
  1. Name the two clades of protostomes?
    a. Lophotrochozoa and Deuterostomia.
    b. Ecdysozoa and Lophotrochozoa.
    c. Lophotrochozoa and Platyhelminthes.
    d. Protozoa and Lophotrochozoa.
A

b. Ecdysozoa and Lophotrochozoa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

This class of the Platyhelminthes consists of the parasitic flukes.
a. Turbellaria.
b. Cestoda.
c. Trematoda.
d. Nemertea.

A

c. Trematoda.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the function of the scolex in a tapeworm?
a. Attachment to the host.
b. Gas exchange.
c. Reproduction.
d. Digestion.

A

a. Attachment to the host.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Rotifers have a(n)______________.
a. incomplete digestive system
b. complete digestive system
c. circulatory system
d. B and C

A

b. complete digestive system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Which class of molluscs is the most diverse?
a. Class Cephalopoda.
b. Class Bivalvia.
c. Class Polyplacophora.
d. Class Gastropoda.

A

d. Class Gastropoda.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Setae serve various functions in different annelid species. They are used ______.
a. as anchor mechanisms
b. in locomotion
c. in respiration
d. all of the above

A

d. all of the above

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Earthworms are monoecious, meaning _______________.
a. they possess a singular sex organ
b. they possess both male and female organs
c. they eat only one sort of food
d. they are either male or female

A

b. they possess both male and female organs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Which of the following are acoelomates?
a. Free-living planarians.
b. Flukes.
c. Tapeworms.
d. All of the above

A

d. All of the above

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What class of molluscs provides us with our seafood dinners of clams, oysters, mussels, and scallops?
a. Class Cephalopoda.
b. Class Bivalvia.
c. Class Polyplacophora.
d. Class Gastropoda.

A

b. Class Bivalvia.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Cutting a planarian in half results in the subsequent formation of two fully formed individuals. What is this process called?
a. Magnification.
b. Regreneration
c. Reproduction.
d. Budding.

A

b. Regeneration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Name this thick walled muscular structure found in the earthworm.
a. Crop.
b. Gizzard.
c. Clitellum.
d. Seminal vesicles.

A

b. Gizzard.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the function of the pharynx in the planarian?
a. Obtaining food.
b. Excreting waste.
c. Reproduction.
d. Locomotion.

A

a. Obtaining food

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

A pearl is made from what natural process?
a. A stone enters oysters or mussels and is rubbed smooth.
b. An irritant enters an oyster or mussel and is coated in calcium carbonate.
c. An organ within an oyster or mussel becomes calcified.
d. It is a genetic mutation in oysters and mussels.

A

b. An irritant enters an oyster or mussel and is coated in calcium carbonate.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

A radula is present in which mollusc?
a. Snail.
b. Clam.
c. Squid.
d. A and C.

A

d. A and C.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Which of the following is NOT a characteristic of organisms in the class Cestoda?
a. Possess a muscular pharynx.
b. Are made up of a series of proglottids.
c. Are dependent on their host for nutrition.
d. Monoecious.

A

a. Possess a muscular pharynx.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Which of the following is TRUE of flatworms?
a. They have bilateral symmetry.
b. They have anterior and posterior ends.
c. They can be parasitic.
d. All of the above.
e. A and B.

A

d. all of the above

17
Q

Where does gas exchange occur in turbellarians?
a. Anus.
b. Mouth.
c. Body surface.
d. B and C.

A

Body surface.

18
Q

Cestodes are dependent on their host for ____________ because they lack ______________.
a. protection, tegument
b. gas exchange, a mouth
c. nutrients, a digestive tract
d. warmth, a circulatory system

A

c. nutrients, a digestive tract

19
Q

Which of the following are NOT present in the rotifer?
a. Crown of cilia, or corona.
b. True coelom.
c. Complete digestive system.
d. Toes with spurs.

A

b. True coelom.

20
Q

Which of the following are found in both the rotifer and the annelid.
a. Segmented body.
b. Protective cuticle layer.
c. Cilia used for feeding and locomotion.
d. Incomplete digestive system.

A

b. Protective cuticle layer.

21
Q

How do turbellarians, such as the planaria, rid themselves of digestive waste products?
a. Anus.
b. Eject wastes through the mouth.
c. Diffuse across the surface of the body.
d. Paired protonephridia and flame cells.

A

b. Eject wastes through the mouth.

22
Q

Why do squid and other cephalopods secrete a substance known as dark sepia?
a. To attract mates.
b. To ambush their prey.
c. To create a screen for their escape.
d. To communicate with other cephalopods.

A

c. To create a screen for their escape.

23
Q

The visceral mass region of a mollusc contains which of the following?
a. Digestive and respiratory systems.
b. Digestive, respiratory, and circulatory systems.
c. Digestive and circulatory systems.
d. Digestive, respiratory, circulatory, and reproductive systems.

A

d. Digestive, respiratory, circulatory, and reproductive systems.

24
Q

Which of the following is NOT a characteristic of lophotrochozoans?
a. Horseshoe-shaped crown of ciliated tentacles.
b. Translucent top-shaped ciliated larvae.
c. Bilateral symmetry.
d. Deuterostomes.

A

d. Deuterostomes.

25
Q

Which of the following describes the order of infection for the Chinese liver fluke (Clonorchis sinensis)?
a. Water, fish, water, human.
b. Water, water, fish, snail, human.
c. Water, snail, water, fish, human.
d. Water, human, snail, water.

A

c. Water, snail, water, fish, human.

26
Q

Rotifers live in an environment susceptible to drying out. How does this organism cope with this environmental stress?
a. Reproduces asexually.
b. Reproduces sexually.
c. Enters a state of arrested biological activity.
d. Forms a sclerotium to withstand harsh conditions.

A

c. Enters a state of arrested biological activity.

27
Q

This is the ventral surface of what organism?

a. Barnacle.
b. Slug.
c. Chiton.
d. Snail.

A

c. Chiton

28
Q

Perfectly round holes in a mollusc’s shell are caused by ______________.
a. an enemy attacking internal muscle
b. the rasping of the radula of another mollusc
c. natural weathering processes
d. the grinding in of sand particles

A

b. the rasping of the radula of another mollusc

29
Q

Which of the following adjectives is most closely associated with the term nacreous?
a. Hard.
b. Dull.
c. Lustrous.
d. Gritty.

A

c. Lustrous.

30
Q

Which feature is NOT attributed to leeches in centuries-old medical procedures?
a. Anesthetic.
b. Anticoagulant.
c. Vasodilator.
d. Antibacterial.

A

d. Antibacterial.