Question 1

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 2

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 organized
E)  Chordate-animal with notochordF) A) and D)
G) B) and D)

Question 3

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

Accepted Answer

A)  radial cleavage
B)  protostome
C)  diploblastic
D)  acoelomate
E)  radial symmetryF) B) and C)
G) A) and E)

Question 4

Which of the following characteristics applies to humans?

Accepted Answer

A)  protostomes
B)  determinate growth
C)  acoelomate
D)  deuterostomesE) A) and D)
F) All of the above D

Question 5

Which of the following describes what is currently known about Ctenophore symmetry?

Accepted Answer

A)  Ctenophores are diploblasts with bilateral symmetry.
B)  Ctenophores are possibly triploblasts because of muscle cells derived from mesoderm.
C)  Ctenophores are bilaterians.
D)  Ctenophores are lacking symmetry.E) None of the above
F) B) and D)

Question 6

Pseudocoelomate nematodes lack a body cavity.

Accepted Answer

A)  Correct; their pseudocoel does not allow for the development and expansion of organs.
B)  Incorrect; their body cavity is fully enclosed by ectoderm but is a functional body cavity.
C)  Correct; they are solid from the gut to the cuticle.
D)  Incorrect; although not fully enclosed by mesoderm the pseudocoel is a body cavity.E) None of the above
F) B) and D)

Question 7

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)  pseudocoelomate.F) D) and E)
G) A) and E)

Question 8

A researcher is using molecular phylogenetic techniques to determine the evolutionary relationships of a large set of animal species.Which type of species are most likely to have been wrongly classified based on morphology alone?

Accepted Answer

A)  Parasitic species
B)  Aquatic species
C)  Bilateral species
D)  Terrestrial species
E)  Species with spiral developmentF) C) and D)
G) A) and B)

Question 9

Linnaeus lumped all of the worm-like animals into the category Vermes (Vermis is Latin for worm) .Is this a valid classification scheme?

Accepted Answer

A)  No,because some worms are protists.
B)  Yes,because all worms are members of the same phylum.
C)  Yes,because all worm-like animals are more closely related to each other than they are to other animals.
D)  No,because the worm-like body plan has appeared many times through evolutionary history and is not a useful trait for classification.E) B) and C)
F) A) and C) D

Question 10

Despite their seemingly simple anatomy and radial symmetry,________ are a type of deuterostome,and closely related to the chordates.(Check all that apply.)

Accepted Answer

A)  Jellyfish
B)  Sea urchins
C)  Sea stars
D)  Acoel flatworms
E)  AnemonesF) A) and B)
G) A) and E)

Question 11

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

Accepted Answer

A)  Parazoa
B)  diploblastic
C)  deuterostome
D)  pseudocoelomateE) A) and B)
F) A) and C)

Question 12

Given the distribution of the 30 or so animal phyla across the Earth's various ecosystems,what would be the most likely habitat for the origin of animals?

Accepted Answer

A)  Rain forests
B)  Freshwater habitats
C)  Deserts
D)  Oceans
E)  Temperate grasslandF) A) and C)
G) B) and E) D

Question 13

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 walls
E)  embryonic developmentF) A) and E)
G) None of the above

Question 14

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

Accepted Answer

A)  radial symmetry
B)  lophophore
C)  Parazoa
D)  deuterostome
E)  radial cleavageF) A) and D)
G) B) and D)

Question 15

Solid worms that lack a body cavity are known as

Accepted Answer

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

Question 16

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)  the blastopore develops into the mouth.F) A) and D)
G) A) and B)

Question 17

Select the following phylum that includes coelomate,bilaterian animals that have a structure called a notochord.

Accepted Answer

A)  Echinodermata
B)  Annelida
C)  Arthropoda
D)  Mollusca
E)  ChordataF) None of the above
G) A) and B)

Question 18

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

Accepted Answer

A)  Annelida,Mollusca,Arthropoda
B)  Echinodermata,Platyhelminthes,Cnidaria
C)  Mollusca,Chordata,Annelida
D)  Arthropoda,Chordata,Porifera
E)  Arthropoda,Annelida,ChordataF) A) and D)
G) None of the above

Question 19

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 genes
E)  Genes for biosynthesis of chitinF) B) and D)
G) B) and E)

Question 20

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 symmetry
E)  a triploblastic embryoF) A) and E)
G) A) and D)

Exam 32: Animal Diversity and the Evolution of Body Plans

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following characteristics applies to humans?

Correct AnswerverifiedD

Which of the following describes what is currently known about Ctenophore symmetry?

Correct AnswerverifiedShow Answer

Pseudocoelomate nematodes lack a body cavity.

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

A researcher is using molecular phylogenetic techniques to determine the evolutionary relationships of a large set of animal species.Which type of species are most likely to have been wrongly classified based on morphology alone?

Correct AnswerverifiedShow Answer

Linnaeus lumped all of the worm-like animals into the category Vermes (Vermis is Latin for worm) .Is this a valid classification scheme?

Correct AnswerverifiedD

Despite their seemingly simple anatomy and radial symmetry,________ are a type of deuterostome,and closely related to the chordates.(Check all that apply.)

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Given the distribution of the 30 or so animal phyla across the Earth's various ecosystems,what would be the most likely habitat for the origin of animals?

Correct AnswerverifiedD

Which one of the following features is unique to animals?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Solid worms that lack a body cavity are known as

Correct AnswerverifiedShow Answer

In animals that display indeterminate development

Correct AnswerverifiedShow Answer

Select the following phylum that includes coelomate,bilaterian animals that have a structure called a notochord.

Correct AnswerverifiedShow Answer

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

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

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

Correct AnswerverifiedShow Answer

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