Question 1

Which one of the following terms applies to the phylum Mollusca?

Accepted Answer

A)  protostome
B)  pseudocoelomate
C)  Parazoa
D)  diploblasticE) All of the above
F) C) and D)

Question 2

Which one of the following terms applies to the phylum Nematoda?

Accepted Answer

A)  Parazoa
B)  diploblastic
C)  deuterostome
D)  pseudocoelomateE) C) and D)
F) None of the above D

Question 3

Touching a jellyfish can be a very painful experience whereas touching a comb jelly is not painful.Why is there a difference?

Accepted Answer

A)  Nematocysts in ctenophores lack venom.
B)  Ctenophores have very reduced nematocysts that cannot penetrate human skin.
C)  Ctenphores do not possess nematocysts.
D)  Ctenophores only use nematocycts for feeding, not for defense.E) All of the above
F) C) and D) C

Question 4

In the animal subkingdom _____, the animals lack symmetry and possess neither tissues nor organs.

Accepted Answer

The answer of In the animal subkingdom _____, the animals...

Question 5

A scientist is studying some developing eggs from an ocean sample.The early embryos have divided only a few times, and all cells look identical.When the scientist carefully removes half the cells from an embryo, both clumps of cells are able to complete development, forming twins.The eggs can be identified as:

Accepted Answer

A)  deuterostomes
B)  protostomes
C)  crustaceans
D)  cnidariansE) C) and D)
F) B) and D)

Question 6

Which one of the following features is unique to animals?

Accepted Answer

A)  cells organized into tissues
B)  movement associated with muscle tissue and nervous tissue
C)  heterotrophism
D)  cells without wallsE) None of the above
F) A) and C)

Question 7

Which one of the following terms applies to the phylum Platyhelminthes?

Accepted Answer

A)  radial cleavage
B)  protostome
C)  diploblastic
D)  acoelomateE) A) and B)
F) None of the above

Question 8

Which one of the following terms applies to the phylum Cnidaria?

Accepted Answer

A)  radial symmetry
B)  pseudocoelomate
C)  Parazoa
D)  triploblasticE) A) and D)
F) B) and D)

Question 9

A mixture of DNA fragments is amplified from a sample of ocean water.Which gene(s)  could be definitively categorized as originating from a species of animal?

Accepted Answer

A)  Genes for ATP synthase
B)  Genes for RuBisCO
C)  Gene for Spongin
D)  Cell cycle regulatory genesE) All of the above
F) A) and D)

Question 10

How could a biologist distinguish an acoel flatworm from a free living platyhelminth?

Accepted Answer

A)  The acoel worm would be solid throughout, since it lacks a gut.
B)  The acoel worm would have a nervous system.
C)  The platyhelminth would have a more primitive gut and nervous system.
D)  Only the acoel is triploblastic.E) None of the above
F) B) and D)

Question 11

A biologist discovered a new animal.Upon studying its embryonic development, she observed radial cleavage with the blastopore developing into an anus.This animal was categorized as a

Accepted Answer

A)  parazoan.
B)  radiata.
C)  deuterostome.
D)  protostome.E) C) and D)
F) A) and D)

Question 12

Of the following features, which is the most widely shared in the animal kingdom?

Accepted Answer

A)  protostome development
B)  radial cleavage
C)  molting of a cuticle or exoskeleton
D)  a body plan with symmetryE) C) and D)
F) A) and C)

Question 13

In animals that display indeterminate development

Accepted Answer

A)  embryonic cells have a predetermined fate.
B)  bilateral symmetry cannot develop.
C)  early embryonic cells, if separated from the embryo, can develop into complete organisms.
D)  embryonic cells show spiral cleavage.E) All of the above
F) A) and B)

Question 14

The embryonic layer found only in bilaterally symmetrical eumetazoans is the ______.

Accepted Answer

The answer of The embryonic layer found only in bilaterally...

Question 15

Select the phylum that includes deuterostome animals that are exclusively marine and have radial symmetry as adults.

Accepted Answer

A)  Porifera
B)  Rotifera
C)  Echinodermata
D)  ChordataE) A) and C)
F) B) and C)

Question 16

Animals with a body cavity located between the mesoderm and endoderm are _____.

Accepted Answer

The answer of Animals with a body cavity located between...

Question 17

Solid worms that lack a body cavity are known as

Accepted Answer

A)  acoelomates.
B)  pseudocoelomates.
C)  triploblastic.
D)  coelomates.E) A) and D)
F) C) and D)

Question 18

Which one of the following terms applies to the phylum Bryozoa?

Accepted Answer

A)  radial symmetry
B)  lophophore
C)  Parazoa
D)  deuterostomeE) A) and D)
F) A) and C)

Question 19

In all deuterostomes, the cells divide parallel to and at right angles to the polar axis.This pattern is called _______________.

Accepted Answer

radial cleavage

Question 20

Which of the following terms is mismatched with its meaning or characteristics?

Accepted Answer

A)  Diploblastic-ectoderm and mesoderm
B)  Triploblastic-ectoderm, mesoderm, and endoderm
C)  Parazoa-lacks symmetry; no tissues
D)  Eumetazoa-definite symmetry; tissues organizedE) C) and D)
F) B) and D)

Exam 33: Animal Diversity and the Evolution of Body Plans

Which one of the following terms applies to the phylum Mollusca?

Correct Answer
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Which one of the following terms applies to the phylum Nematoda?

Correct Answer
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D

Touching a jellyfish can be a very painful experience whereas touching a comb jelly is not painful.Why is there a difference?

Correct Answer
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C

In the animal subkingdom _____, the animals lack symmetry and possess neither tissues nor organs.

Correct Answer
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Correct Answer
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Which one of the following features is unique to animals?

Correct Answer
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Which one of the following terms applies to the phylum Platyhelminthes?

Correct Answer
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Which one of the following terms applies to the phylum Cnidaria?

Correct Answer
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A mixture of DNA fragments is amplified from a sample of ocean water.Which gene(s) could be definitively categorized as originating from a species of animal?

Correct Answer
verified

How could a biologist distinguish an acoel flatworm from a free living platyhelminth?

Correct Answer
verified

A biologist discovered a new animal.Upon studying its embryonic development, she observed radial cleavage with the blastopore developing into an anus.This animal was categorized as a

Correct Answer
verified

Of the following features, which is the most widely shared in the animal kingdom?

Correct Answer
verified

In animals that display indeterminate development

Correct Answer
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The embryonic layer found only in bilaterally symmetrical eumetazoans is the ______.

Correct Answer
verified

Select the phylum that includes deuterostome animals that are exclusively marine and have radial symmetry as adults.

Correct Answer
verified

Animals with a body cavity located between the mesoderm and endoderm are _____.

Correct Answer
verified

Solid worms that lack a body cavity are known as

Correct Answer
verified

Which one of the following terms applies to the phylum Bryozoa?

Correct Answer
verified

In all deuterostomes, the cells divide parallel to and at right angles to the polar axis.This pattern is called _______________.

Correct Answer
verified
radial cleavage

Which of the following terms is mismatched with its meaning or characteristics?

Correct Answer
verified

Exam 33: Animal Diversity and the Evolution of Body Plans

Which one of the following terms applies to the phylum Mollusca?

Correct AnswerverifiedShow Answer

Which one of the following terms applies to the phylum Nematoda?

Correct AnswerverifiedD

Touching a jellyfish can be a very painful experience whereas touching a comb jelly is not painful.Why is there a difference?

Correct AnswerverifiedC

In the animal subkingdom _____, the animals lack symmetry and possess neither tissues nor organs.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which one of the following features is unique to animals?

Correct AnswerverifiedShow Answer

Which one of the following terms applies to the phylum Platyhelminthes?

Correct AnswerverifiedShow Answer

Which one of the following terms applies to the phylum Cnidaria?

Correct AnswerverifiedShow Answer

A mixture of DNA fragments is amplified from a sample of ocean water.Which gene(s) could be definitively categorized as originating from a species of animal?

Correct AnswerverifiedShow Answer

How could a biologist distinguish an acoel flatworm from a free living platyhelminth?

Correct AnswerverifiedShow Answer

A biologist discovered a new animal.Upon studying its embryonic development, she observed radial cleavage with the blastopore developing into an anus.This animal was categorized as a

Correct AnswerverifiedShow Answer

Of the following features, which is the most widely shared in the animal kingdom?

Correct AnswerverifiedShow Answer

In animals that display indeterminate development

Correct AnswerverifiedShow Answer

The embryonic layer found only in bilaterally symmetrical eumetazoans is the ______.

Correct AnswerverifiedShow Answer

Select the phylum that includes deuterostome animals that are exclusively marine and have radial symmetry as adults.

Correct AnswerverifiedShow Answer

Animals with a body cavity located between the mesoderm and endoderm are _____.

Correct AnswerverifiedShow Answer

Solid worms that lack a body cavity are known as

Correct AnswerverifiedShow Answer

Which one of the following terms applies to the phylum Bryozoa?

Correct AnswerverifiedShow Answer

In all deuterostomes, the cells divide parallel to and at right angles to the polar axis.This pattern is called _______________.

Correct Answerverifiedradial cleavage

Which of the following terms is mismatched with its meaning or characteristics?

Correct AnswerverifiedShow Answer

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D

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C

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radial cleavage

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