Question 1

How is the liver fluke transmitted to humans?

Accepted Answer

A)  Eating contaminated fish
B)  Eating contaminated pork
C)  By mosquitoes
D)  Drinking contaminated waterE) C) and D)
F) B) and D) A

Question 2

Which of the following is missing in parasitic flatworms compared to the free-living flatworms?

Accepted Answer

A)  Testes
B)  Eyespots
C)  Digestive tract
D)  Excretory systemE) B) and C)
F) C) and D)

Question 3

Chordates are characterized by having a ________________,a dorsal,flexible supportive rod.

Accepted Answer

The answer of Chordates are characterized by having a ________________,a...

Question 4

Chordates can be characterized as having:

Accepted Answer

A)  a notochord
B)  a nerve cord
C)  bilateral symmetry
D)  All of the choices are correct.E) None of the above
F) All of the above D

Question 5

Animals in which the anus develops before the mouth in the embryo are:

Accepted Answer

A)  coelomic
B)  protostomes
C)  deuterostomes
D)  coelenteratesE) C) and D)
F) None of the above C

Question 6

The function of the notochord is taken over by the ____________ in vertebrates.

Accepted Answer

A)  brain
B)  spinal cord
C)  backbone
D)  ribsE) B) and C)
F) None of the above

Question 7

What group has a water vascular system,moves with tube feet,and has an endoskeleton?

Accepted Answer

A)  Echinoderms
B)  Arachnids
C)  Crustaceans
D)  MandibulatesE) B) and D)
F) A) and D)

Question 8

It has often been said that the next dominant animals on land,after a hypothetical demise of all mammals,would be the insects.Why so?

Accepted Answer

Insects are so diverse and adapted to su...

Question 9

Of the mollusks,octopuses are in the class of:

Accepted Answer

A)  gastropods
B)  bivalves
C)  cephalopods
D)  deuterostomesE) A) and B)
F) A) and C)

Question 10

Describe a hypothesis for the origin of metazoans from single celled protists.

Accepted Answer

The colonial flagell...

Question 11

Which feature of mollusks is a rasping tongue-like organ?

Accepted Answer

A)  Gills
B)  Mantle
C)  Radula
D)  Cheliped
E)  PedipalpF) B) and E)
G) B) and C)

Question 12

The subkingdom of animals that lack symmetry and have no true tissues or organs is the:

Accepted Answer

A)  Eumetazoa
B)  Parazoa
C)  Chordata
D)  VertebrataE) A) and B)
F) All of the above

Question 13

Of the mollusks,snails are in the class of:

Accepted Answer

A)  gastropods
B)  bivalves
C)  cephalopods
D)  deuterostomesE) A) and C)
F) C) and D)

Question 14

Sand dollars,sea stars,sea cucumbers,and sea urchins all belong to the phylum _____.

Accepted Answer

A)  Lophophorates
B)  Rotirfera
C)  Chordata
D)  Echinodermata
E)  ArthropodaF) A) and C)
G) A) and B)

Question 15

All of the following are correct about protostomes except:

Accepted Answer

A)  The developmental fate of each cell in the embryo is fixed when that cell first appears.
B)  The blastopore becomes the animal's anus.
C)  The mesoderm splits to form the coelom.
D)  Embryonic cells cleave in a spiral pattern.E) C) and D)
F) None of the above

Question 16

The key evolutionary development seen for the first time in the sponges is that of:

Accepted Answer

A)  a complete digestive tract
B)  major organ systems
C)  body symmetry
D)  multicellularityE) A) and B)
F) None of the above

Question 17

_________________ are small,aquatic pseudocoelomate organisms that have a crown of cilia on their heads.

Accepted Answer

The answer of _________________ are small,aquatic pseudocoelomate organisms that have...

Question 18

Which feature is not a characteristic of the animals?

Accepted Answer

A)  Multicellular heterotrophs
B)  Sexual reproduction
C)  Embryonic development
D)  Cell wallsE) All of the above
F) A) and B)

Question 19

The ability of a sponge cell to identify other such sponge cells is called ______________________.

Accepted Answer

The answer of The ability of a sponge cell to...

Question 20

Which of the following represents the more of the arthropods than any other group?

Accepted Answer

A)  Bees
B)  Flies
C)  Moths
D)  Beetles
E)  CrustaceansF) A) and E)
G) A) and D)

Exam 19: Evolution of the Animal Phyla

How is the liver fluke transmitted to humans?

Correct AnswerverifiedA

Which of the following is missing in parasitic flatworms compared to the free-living flatworms?

Correct AnswerverifiedShow Answer

Chordates are characterized by having a ________________,a dorsal,flexible supportive rod.

Correct AnswerverifiedShow Answer

Chordates can be characterized as having:

Correct AnswerverifiedD

Animals in which the anus develops before the mouth in the embryo are:

Correct AnswerverifiedC

The function of the notochord is taken over by the ____________ in vertebrates.

Correct AnswerverifiedShow Answer

What group has a water vascular system,moves with tube feet,and has an endoskeleton?

Correct AnswerverifiedShow Answer

It has often been said that the next dominant animals on land,after a hypothetical demise of all mammals,would be the insects.Why so?

Correct AnswerverifiedInsects are so diverse and adapted to su...View AnswerShow Answer

Of the mollusks,octopuses are in the class of:

Correct AnswerverifiedShow Answer

Describe a hypothesis for the origin of metazoans from single celled protists.

Correct AnswerverifiedThe colonial flagell...View AnswerShow Answer

Which feature of mollusks is a rasping tongue-like organ?

Correct AnswerverifiedShow Answer

The subkingdom of animals that lack symmetry and have no true tissues or organs is the:

Correct AnswerverifiedShow Answer

Of the mollusks,snails are in the class of:

Correct AnswerverifiedShow Answer

Sand dollars,sea stars,sea cucumbers,and sea urchins all belong to the phylum _____.

Correct AnswerverifiedShow Answer

All of the following are correct about protostomes except:

Correct AnswerverifiedShow Answer

The key evolutionary development seen for the first time in the sponges is that of:

Correct AnswerverifiedShow Answer

_________________ are small,aquatic pseudocoelomate organisms that have a crown of cilia on their heads.

Correct AnswerverifiedShow Answer

Which feature is not a characteristic of the animals?

Correct AnswerverifiedShow Answer

The ability of a sponge cell to identify other such sponge cells is called ______________________.

Correct AnswerverifiedShow Answer

Which of the following represents the more of the arthropods than any other group?

Correct AnswerverifiedShow Answer

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Insects are so diverse and adapted to su...
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The colonial flagell...
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