Question 1

Bilateral symmetrical animals have evolved three body cavity plans.Each of the following statements is correct with the exception of one.Select the exception.

Accepted Answer

A)  Acoelomates have no body cavity.
B)  Coelomates have a body cavity lined with mesodermal cells.
C)  Coelomates have a fluid filled cavity that develops entirely within the mesoderm.
D)  Pseudocoelomates have a body cavity that is located between the ectoderm and the endoderm.E) B) and D)
F) C) and D)

Question 2

Which one of the following features would indicate that an animal is not a deuterostome?

Accepted Answer

A)  triploblastic
B)  blastopore becomes the anus
C)  dividing cells on a radius from the polar axis
D)  coelom partially lined with mesoderm
E)  identical twinning can occurF) None of the above
G) A) and D)

Question 3

Protostomes develop through

Accepted Answer

A)  spiral cleavage.
B)  radial cleavage.
C)  axial cleavage.
D)  polar cleavage.
E)  protocleavagE.F) A) and D)
G) A) and C)

Question 4

In a _____ circulatory system,circulation of blood is more controlled-the blood is moved faster and more efficiently than in other types of circulatory systems.

Accepted Answer

The answer of In a _____ circulatory system,circulation of blood...

Question 5

Eumetazoa can be subdivided into two principal branches based on _____.

Accepted Answer

The answer of Eumetazoa can be subdivided into two principal...

Question 6

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 lack...

Question 7

Which of the following is not a characteristic of a vertebrate?

Accepted Answer

A)  radial cleavage
B)  indeterminate development
C)  circulatory system present
D)  diploblastic
E)  coelomateF) B) and E)
G) C) and D)

Question 8

Parazoa

Accepted Answer

A)  are pseudocoelomates.
B)  exhibit bilateral symmetry.
C)  include Cnidaria and Ctenophora.
D)  exhibit primitive segmentation.
E)  have no true tissues.F) B) and E)
G) A) and B)

Question 9

Two outwardly dissimilar groups,the ____________ and the chordates,together with a few other small phyla,constitute the deuterostomes.

Accepted Answer

The answer of Two outwardly dissimilar groups,the ____________ and the...

Question 10

Segmentation is the subdivision of the body into segments or metameres.True segmentation is found in which of the following phyla selections?

Accepted Answer

A)  Annelida,Mollusca,Arthropoda
B)  Echinodermata,Platyhelminthes,Cnidaria
C)  Mollusca,Chordata,Annelida
D)  Arthropoda,Chordata,Porifera
E)  Arthropoda,Annelida,ChordataF) B) and D)
G) B) and C)

Question 11

Which one of the following statements about molecular systematics and its role in the classification of animals is false?

Accepted Answer

A)  Clades consist of monophyletic taxa sharing the same gene sequences.
B)  Different molecules sometimes support different taxonomic relationships.
C)  Molecular data suggests that arthropods and annelids are part of the same clade.
D)  Molecular data suggests that a new group of "molting" animals,the Ecdysozoa,is monophyletic.
E)  Combining data from many different molecules gives the best picture of phylogenetic relationships.F) B) and C)
G) A) and E)

Question 12

Which one of the following terms does not apply to the phylum Annelida?

Accepted Answer

A)  bilateral symmetry
B)  triploblastic
C)  protostome
D)  indeterminate cleavage
E)  spiral cleavageF) B) and C)
G) A) and C)

Question 13

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

Accepted Answer

A)  Parazoa
B)  radial cleavage
C)  diploblastic
D)  deuterostome
E)  pseudocoelomateF) C) and D)
G) B) and C)

Question 14

Which one of the following terms does not apply to the phylum Porifera?

Accepted Answer

A)  Parazoa
B)  no true tissues
C)  asymmetry
D)  acoelomate
E)  diploblasticF) None of the above
G) A) and D)

Question 15

Select the following phylum that includes animals that are unsegmented,acoelomate,and have a digestive cavity with a single opening.

Accepted Answer

A)  Annelida
B)  Platyhelminthes
C)  Nematoda
D)  Cnidaria
E)  RotiferaF) B) and C)
G) A) and E)

Question 16

Solid worms that lack a body cavity are known as

Accepted Answer

A)  acoelomates.
B)  pseudocoelomates.
C)  triploblastiC.
D)  coelomates.
E)  diploblastic.F) None of the above
G) All of the above

Exam 32: Overview of Animal Diversity

Which one of the following features would indicate that an animal is not a deuterostome?

Correct Answer
verified

Segmentation is the subdivision of the body into segments or metameres.True segmentation is found in which of the following phyla selections?

Correct Answer
verified

Which one of the following terms does not apply to the phylum Annelida?

Correct Answer
verified

Parazoa

Correct Answer
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In the animal subkingdom ______,the animals lack symmetry and possess neither tissues nor organs.

Correct Answer
verified

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

Correct Answer
verified

Solid worms that lack a body cavity are known as

Correct Answer
verified

In a _____ circulatory system,circulation of blood is more controlled-the blood is moved faster and more efficiently than in other types of circulatory systems.

Correct Answer
verified

Two outwardly dissimilar groups,the ____________ and the chordates,together with a few other small phyla,constitute the deuterostomes.

Correct Answer
verified

Which one of the following statements about molecular systematics and its role in the classification of animals is false?

Correct Answer
verified

Protostomes develop through

Correct Answer
verified

Select the following phylum that includes animals that are unsegmented,acoelomate,and have a digestive cavity with a single opening.

Correct Answer
verified

Which of the following is not a characteristic of a vertebrate?

Correct Answer
verified

Eumetazoa can be subdivided into two principal branches based on _____.

Correct Answer
verified

Bilateral symmetrical animals have evolved three body cavity plans.Each of the following statements is correct with the exception of one.Select the exception.

Correct Answer
verified

Which one of the following terms does not apply to the phylum Porifera?

Correct Answer
verified

Exam 32: Overview of Animal Diversity

Which one of the following features would indicate that an animal is not a deuterostome?

Correct AnswerverifiedShow Answer

Segmentation is the subdivision of the body into segments or metameres.True segmentation is found in which of the following phyla selections?

Correct AnswerverifiedShow Answer

Which one of the following terms does not apply to the phylum Annelida?

Correct AnswerverifiedShow Answer

Parazoa

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Solid worms that lack a body cavity are known as

Correct AnswerverifiedShow Answer

In a _____ circulatory system,circulation of blood is more controlled-the blood is moved faster and more efficiently than in other types of circulatory systems.

Correct AnswerverifiedShow Answer

Two outwardly dissimilar groups,the ____________ and the chordates,together with a few other small phyla,constitute the deuterostomes.

Correct AnswerverifiedShow Answer

Which one of the following statements about molecular systematics and its role in the classification of animals is false?

Correct AnswerverifiedShow Answer

Protostomes develop through

Correct AnswerverifiedShow Answer

Select the following phylum that includes animals that are unsegmented,acoelomate,and have a digestive cavity with a single opening.

Correct AnswerverifiedShow Answer

Which of the following is not a characteristic of a vertebrate?

Correct AnswerverifiedShow Answer

Eumetazoa can be subdivided into two principal branches based on _____.

Correct AnswerverifiedShow Answer

Bilateral symmetrical animals have evolved three body cavity plans.Each of the following statements is correct with the exception of one.Select the exception.

Correct AnswerverifiedShow Answer

Which one of the following terms does not apply to the phylum Porifera?

Correct AnswerverifiedShow Answer

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