Question 1

Cephalization is the evolutionary tendency toward the concentration of sense organs at one end of the body of bilateral animals.

Accepted Answer

A) True 
 B)False

Question 2

Match the life stage with its most closely associated feature.
-Planula

Accepted Answer

A)  Attached form
B)  Larval form
C)  Free floating larval and adult formD) None of the above
E) A) and B)

Question 3

Which of the following is not bilaterally symmetric?

Accepted Answer

A)   turbellarian
B)   lamp shell
C)   ribbon worm
D)   phoronid
E)   comb jellyF) A) and C)
G) A) and B)

Question 4

Representatives of free living flatworms are:

Accepted Answer

A)   turbellarians.
B)   cestodes.
C)   trematodes.
D)   tapeworms.
E)   polychaetes.F) A) and E)
G) B) and C)

Question 5

Match the ecological role with the animal group it is most closely associated with.
-Nemertea

Accepted Answer

A)  Carnivores on zooplankton
B)  Filter feeders
C)  Carnivores on benthic infaunaD) All of the above
E) A) and B)

Question 6

What is meant by the term "cephalization"? Identify at least 4 animal phyla that possess this feature.

Accepted Answer

Cephalization refers to the evolutionary...

Question 7

The form of the sponge body can best be described as having

Accepted Answer

A)   radial symmetry.
B)   asymmetry.
C)   bilateral symmetry.
D)   dorsal-ventral symmetry.
E)   pentamerous symmetry.F) C) and E)
G) A) and E)

Question 8

Which is not a lophophorate?

Accepted Answer

A)   Phoronida
B)   Ectoprocta
C)   Brachiopods
D)   Flukes & tapeworms
E)   Lamp shellsF) C) and D)
G) A) and B)

Question 9

Match the words with the animals they are most closely associated with.
-Platyhelminthes

Accepted Answer

A)  Cilia for locomotion
B)  Collar cells
C)  Stinging cellsD) A) and B)
E) All of the above

Question 10

Match the animal group with its most closely associated food gathering tool.
-Cnidarians

Accepted Answer

A)  Proboscis
B)  Nematocysts
C)  Collar cellsD) A) and C)
E) None of the above

Question 11

Match the ecological role with the animal group it is most closely associated with.
-Porifera

Accepted Answer

A)  Carnivores on zooplankton
B)  Filter feeders
C)  Carnivores on benthic infaunaD) A) and C)
E) A) and B)

Question 12

Sponges avoid predators by:

Accepted Answer

A)   seeking sheltered locations.
B)   having spicules.
C)   producing toxins.
D)   both b and c
E)   a and b only.F) A) and E)
G) A) and D)

Question 13

Clown fishes form symbiotic relationships with members of this group of cnidarians:

Accepted Answer

A)   siphonophores.
B)   hydrozoans.
C)   anthozoans.
D)   scyphozoans.
E)   bryozoans.F) B) and E)
G) A) and E)

Question 14

What are 4 distinguishing characteristics that separate animals from other organisms?

Accepted Answer

Animals are multicellular, euk...

Question 15

Sponges often compete with other organisms for:

Accepted Answer

A)   food.
B)   space.
C)   light.
D)   nutrients.
E)   mating.F) D) and E)
G) A) and C)

Question 16

Sponges are heavily preyed upon by marine fishes.

Accepted Answer

A) True 
 B)False

Question 17

Match the animal group with its most closely associated food gathering tool.
-Porifera

Accepted Answer

A)  Proboscis
B)  Nematocysts
C)  Collar cellsD) B) and C)
E) All of the above

Question 18

____ are cells that move through the sponge's body.

Accepted Answer

A)   Collar cells
B)   Pinococytes
C)   Archaeocytes
D)   Spongin
E)   SpiculesF) None of the above
G) C) and E)

Question 19

Reproduction in sponges includes all except:

Accepted Answer

A)   budding.
B)   sexual.
C)   fragmentation.
D)   cloning.E) A) and B)
F) All of the above

Question 20

Match the words with the animals they are most closely associated with.
-Cnidaria

Accepted Answer

A)  comb plates
B)  filter feeder
C)  reef formingD) A) and B)
E) A) and C)

Exam 8: Lower Invertebrates

Sponges are heavily preyed upon by marine fishes.

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Match the ecological role with the animal group it is most closely associated with. -Porifera

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Which is not a lophophorate?

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Match the life stage with its most closely associated feature. -Planula

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Sponges avoid predators by:

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Clown fishes form symbiotic relationships with members of this group of cnidarians:

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____ are cells that move through the sponge's body.

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Match the words with the animals they are most closely associated with. -Cnidaria

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Match the animal group with its most closely associated food gathering tool. -Cnidarians

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What are 4 distinguishing characteristics that separate animals from other organisms?

Correct AnswerverifiedAnimals are multicellular, euk...View AnswerShow Answer

Reproduction in sponges includes all except:

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Sponges often compete with other organisms for:

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The form of the sponge body can best be described as having

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Match the words with the animals they are most closely associated with. -Platyhelminthes

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Which of the following is not bilaterally symmetric?

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Match the ecological role with the animal group it is most closely associated with. -Nemertea

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Cephalization is the evolutionary tendency toward the concentration of sense organs at one end of the body of bilateral animals.

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Representatives of free living flatworms are:

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Match the animal group with its most closely associated food gathering tool. -Porifera

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What is meant by the term "cephalization"? Identify at least 4 animal phyla that possess this feature.

Correct AnswerverifiedCephalization refers to the evolutionary...View AnswerShow Answer

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Animals are multicellular, euk...
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Cephalization refers to the evolutionary...
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