Question 1

Ctenophores capture food by:

Accepted Answer

A)  sticky mucus on their tentacles that capture small invertebrates.
B)  adhesive glue cells that trap prey.
C)  stinging hair cells that immobilize small invertebrates.
D)  digging through the bottom mud for small invertebrates.
E)  filter feeding.

Question 2

A major disadvantage to torsion is that:

Accepted Answer

A)  the animal could die as a result of taking in waste products.
B)  the animal loses its excretory structures and must rely on diffusion.
C)  the mantle no longer covers the visceral mass.
D)  the animal is left with an incomplete digestive tract.
E)  the foot is displaced toward the anterior region.

Question 3

Although corals can capture prey, they also depend on __________ for nutrition.

Accepted Answer

A)  a symbiotic relationship with the photosynthetic zooxanthellae
B)  a symbiotic relationship with lichens
C)  the dead animals found on the ocean floor
D)  photosynthesis since they are part animal and plant
E)  a symbiotic relationship with a fish

Question 4

MATCHING
Match the organism or its characteristic with the correct phylum.
a.Annelida
f.Nematoda
b.Arthropoda
g.Nemertea
c.Cnidaria
H.Platyhelminthes
d.Ctenophora
I.Porifera
e.Mollusca
J.Rotifera
-trichina worms

Accepted Answer

The answer of MATCHING
Match the organism or its characteristic with...

Question 5

Tapeworms belong to class Trematoda.
____________________

Accepted Answer

A) True 
 B)False

Question 6

Members of phylum Ctenophora are diploblastic but lack cnidocytes.
____________________

Accepted Answer

A) True 
 B)False

Question 7

Figure 31-2
Use the figure to answer the corresponding question(s) . 
-Refer to Figure 31-2.Which structure contains chemoreceptors for locating food?

Accepted Answer

A)  1
B)  2
C)  3
D)  4
E)  6

Question 8

Figure 31-5
Use the figure to answer the corresponding question(s) . 
-Which of the following terms is associated with polychaetes?

Accepted Answer

A)  radula
B)  metamorphosis
C)  parapodia
D)  mantle
E)  visceral mass

Question 9

Figure 31-5
Use the figure to answer the corresponding question(s) . 
-Refer to Figure 31-5.Which structure is involved in respiration?

Accepted Answer

A)  5
B)  6
C)  7
D)  8
E)  9

Question 10

The veliger larval form is unique to:

Accepted Answer

A)  insects.
B)  annelids.
C)  molluscs.
D)  arthropods.
E)  crustaceans.

Question 11

A nematocyst is a type of stinging cell.
____________________

Accepted Answer

A) True 
 B)False

Question 12

A spider would be much less harmful if it lacked:

Accepted Answer

A)  spinnerets.
B)  eye spots.
C)  labial palps.
D)  cheliceraE.
E)  mandibles.

Question 13

Members of the class Bivalvia:

Accepted Answer

A)  have gills that secrete the shell.
B)  have a mantle that may form pearls.
C)  are all sessilE.
D)  all have a radulA.
E)  have a broad foot used for locomotion.

Question 14

Ribbon worms have a unique __________ that is used to capture prey.

Accepted Answer

A)  proboscis
B)  tentacle
C)  set of jaws
D)  claw
E)  forked leg

Question 15

Which of the following terms can be associated with many species of mollusks?

Accepted Answer

A)  chelicerae
B)  pupa
C)  radula
D)  pen
E)  internal shell

Question 16

Choanocytes are a characteristic of members of the phylum Cnidaria.
____________________

Accepted Answer

A) True 
 B)False

Question 17

MATCHING
Match the organism or its characteristic with the correct phylum.
a.Annelida
f.Nematoda
b.Arthropoda
g.Nemertea
c.Cnidaria
H.Platyhelminthes
d.Ctenophora
I.Porifera
e.Mollusca
J.Rotifera
-corals

Accepted Answer

The answer of MATCHING
Match the organism or its characteristic with...

Question 18

MATCHING
Match the organism or its characteristic with the correct phylum.
a.Annelida
f.Nematoda
b.Arthropoda
g.Nemertea
c.Cnidaria
H.Platyhelminthes
d.Ctenophora
I.Porifera
e.Mollusca
J.Rotifera
-have a proboscis

Accepted Answer

The answer of MATCHING
Match the organism or its characteristic with...

Question 19

MATCHING
Match the organism or its characteristic with the correct phylum.
a.Annelida
f.Nematoda
b.Arthropoda
g.Nemertea
c.Cnidaria
H.Platyhelminthes
d.Ctenophora
I.Porifera
e.Mollusca
J.Rotifera
-diploblastic with comb-like rows of cilia

Accepted Answer

The answer of MATCHING
Match the organism or its characteristic with...

Question 20

List two characteristics that have contributed to the biological success of the insects, and briefly explain the adaptive value of each characteristic that you identified.

Accepted Answer

Exoskeleton: protection against predator...

Exam 31: Sponges, Cnidarians, Ctenophores, and Protostomes

MATCHING Match the organism or its characteristic with the correct phylum. a.Annelida f.Nematoda b.Arthropoda g.Nemertea c.Cnidaria H.Platyhelminthes d.Ctenophora I.Porifera e.Mollusca J.Rotifera -corals

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Members of the class Bivalvia:

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List two characteristics that have contributed to the biological success of the insects, and briefly explain the adaptive value of each characteristic that you identified.

Correct AnswerverifiedExoskeleton: protection against predator...View AnswerShow Answer

Ctenophores capture food by:

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Although corals can capture prey, they also depend on __________ for nutrition.

Correct AnswerverifiedShow Answer

MATCHING Match the organism or its characteristic with the correct phylum. a.Annelida f.Nematoda b.Arthropoda g.Nemertea c.Cnidaria H.Platyhelminthes d.Ctenophora I.Porifera e.Mollusca J.Rotifera -trichina worms

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Figure 31-5 Use the figure to answer the corresponding question(s) . -Which of the following terms is associated with polychaetes?

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MATCHING Match the organism or its characteristic with the correct phylum. a.Annelida f.Nematoda b.Arthropoda g.Nemertea c.Cnidaria H.Platyhelminthes d.Ctenophora I.Porifera e.Mollusca J.Rotifera -have a proboscis

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Members of phylum Ctenophora are diploblastic but lack cnidocytes. ____________________

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Which of the following terms can be associated with many species of mollusks?

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Tapeworms belong to class Trematoda. ____________________

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Ribbon worms have a unique __________ that is used to capture prey.

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The veliger larval form is unique to:

Correct AnswerverifiedShow Answer

A spider would be much less harmful if it lacked:

Correct AnswerverifiedShow Answer

MATCHING Match the organism or its characteristic with the correct phylum. a.Annelida f.Nematoda b.Arthropoda g.Nemertea c.Cnidaria H.Platyhelminthes d.Ctenophora I.Porifera e.Mollusca J.Rotifera -diploblastic with comb-like rows of cilia

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A nematocyst is a type of stinging cell. ____________________

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Figure 31-2 Use the figure to answer the corresponding question(s) . -Refer to Figure 31-2.Which structure contains chemoreceptors for locating food?

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Choanocytes are a characteristic of members of the phylum Cnidaria. ____________________

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A major disadvantage to torsion is that:

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Figure 31-5 Use the figure to answer the corresponding question(s) . -Refer to Figure 31-5.Which structure is involved in respiration?

Correct AnswerverifiedShow Answer

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Exoskeleton: protection against predator...
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