Question 1

Earthworms have multiple hearts that pump blood throughout the body in vessels.They also ingest soil,digest the organic matter,and eliminate the indigestible particles as castings.Earthworms have which of the following?

Accepted Answer

A)  An incomplete digestive tract and closed circulatory system
B)  A complete digestive tract and open circulatory system
C)  A complete digestive tract and closed circulatory system
D)  An incomplete digestive tract and open circulatory systemE) None of the above
F) A) and B)

Question 2

Which of the following characteristics do all animals share?

Accepted Answer

A)  They are single-celled eukaryotes
B)  They are multi-cellular prokaryotes
C)  They are multi-cellular eukaryotes
D)  They are single-celled prokaryotesE) All of the above
F) A) and C)

Question 3

In most species,the female frog lays her eggs directly in the water as a male clasps her back and releases sperm.The fertilized eggs hatch into legless,aquatic tadpoles.Most tadpoles feed on algae,and have gills.As they mature,tadpoles develop legs and lungs,lose the tail,and acquire carnivorous tastes.Frogs are in which group?

Accepted Answer

A)  Reptile
B)  Mammal
C)  Fish
D)  Amphibian
E)  LanceletF) A) and B)
G) C) and D)

Question 4

The observation that Tiktaalik had both gills and lungs suggests which of the following?

Accepted Answer

A)  It could absorb oxygen from the air
B)  It could absorb oxygen from both the air and water
C)  It could absorb oxygen from the water
D)  It could absorb food from the water
E)  It could both food and oxygen from the waterF) C) and D)
G) A) and D)

Question 5

An animal that maintains their body temperature by using heat generated from their own metabolism is a(an) :

Accepted Answer

A)  Endotherm
B)  Ectotherm
C)  Thermophile
D)  Mesophile
E)  AmnioteF) B) and C)
G) B) and E)

Question 6

Spiders and scorpions belong to the phylum:

Accepted Answer

A)  Cnidaria
B)  Echinodermata
C)  Annelida
D)  Mollusca
E)  ArthropodaF) B) and E)
G) A) and B)

Question 7

Which of the following is an amphibian?

Accepted Answer

A)  Turtle
B)  Lizard
C)  Toad
D)  Octopus
E)  CoelacanthF) A) and D)
G) A) and C)

Question 8

A sea squirt is an example of a:

Accepted Answer

A)  Fish
B)  Tunicate
C)  Mammal
D)  Amphibian
E)  LanceletF) C) and E)
G) B) and E)

Question 9

Flukes and tapeworms belong to the phylum:

Accepted Answer

A)  Platyhelminthes
B)  Cnidaria
C)  Porifera
D)  Nematoda
E)  AnnelidaF) A) and E)
G) B) and D)

Question 10

Centipedes,earthworms,and roundworms all illustrate segmentation.

Accepted Answer

A) True 
 B)False

Question 11

Even semi-aquatic reptiles like crocodiles and alligators can spend much of their life on dry land.Which of the following is an example of an adaptation that would allow reptiles to live and reproduce on dry land?

Accepted Answer

A)  External fertilization and amniotic eggs
B)  Internal fertilization
C)  Amniotic eggs
D)  Internal fertilization and amniotic eggs
E)  External fertilizationF) A) and B)
G) A) and C)

Question 12

Which of the following are characteristics of hagfishes?

Accepted Answer

A)  They have a cranium
B)  They have a skeleton composed of cartilage
C)  They have a cranium and skeleton composed of cartilage
D)  They have vertebrae
E)  They have a cranium and vertebraeF) B) and E)
G) C) and D)

Question 13

At different stages in development a frog may have gills or lungs.Gills and lungs both exchange gases with the atmosphere and are homologous structures.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following is not a characteristic of an annelid?

Accepted Answer

A)  They have a coelom
B)  They have bilateral symmetry
C)  They have an incomplete digestive tract
D)  They are segmented
E)  They have organ systemsF) A) and B)
G) A) and C)

Question 15

Which of the following does not have a true coelom?

Accepted Answer

A)  Earthworm
B)  Snail
C)  Roundworm
D)  Sea star
E)  InsectF) A) and E)
G) All of the above

Question 16

Caenorhabditis elegans is a nematode that scientists have shown grows from a single cell into 1000 cells,of which the same 80 cells die during development through apoptosis.Studying this process in Caenorhabditis elegans has helped scientists identify the genes that regulate similar processes in humans.Which of the following statements is supported by this observation?

Accepted Answer

A)  Caenorhabditis elegans infections in humans trigger apoptosis
B)  Caenorhabditis elegans has the same organs that are present in humans
C)  Caenorhabditis elegans give live birth like humans
D)  Caenorhabditis elegans and humans have a common ancestor
E)  Caenorhabditis elegans have all of the same genes as humansF) A) and C)
G) All of the above

Question 17

Birds that are flightless are classified as:

Accepted Answer

A)  Ratites
B)  Chelicerates
C)  Carinates
D)  Mandibulates
E)  MonotremesF) B) and E)
G) A) and E)

Question 18

Mammals that lay eggs are:

Accepted Answer

A)  Marsupials
B)  Placentals
C)  Bats
D)  Birds
E)  MonotremesF) C) and D)
G) A) and B)

Question 19

A bony or cartilaginous structure that surrounds and protects the brain of chordates is a(an) :

Accepted Answer

A)  Cranium
B)  Notochord
C)  Cerebrum
D)  Meninges
E)  AmnionF) A) and B)
G) None of the above

Question 20

The embryonic germ layer of tissue in animals that develops into the muscles and reproductive system is the:

Accepted Answer

A)  Pachyderm
B)  Ectoderm
C)  Mesoderm
D)  Endoderm
E)  ProtodermF) A) and B)
G) A) and C)

Exam 20: Animals

Which of the following characteristics do all animals share?

Correct Answer
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Correct Answer
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A sea squirt is an example of a:

Correct Answer
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At different stages in development a frog may have gills or lungs.Gills and lungs both exchange gases with the atmosphere and are homologous structures.

Correct Answer
verified

Earthworms have multiple hearts that pump blood throughout the body in vessels.They also ingest soil,digest the organic matter,and eliminate the indigestible particles as castings.Earthworms have which of the following?

Correct Answer
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The embryonic germ layer of tissue in animals that develops into the muscles and reproductive system is the:

Correct Answer
verified

Centipedes,earthworms,and roundworms all illustrate segmentation.

Correct Answer
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Which of the following is an amphibian?

Correct Answer
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Spiders and scorpions belong to the phylum:

Correct Answer
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A bony or cartilaginous structure that surrounds and protects the brain of chordates is a(an) :

Correct Answer
verified

Which of the following are characteristics of hagfishes?

Correct Answer
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Correct Answer
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Which of the following does not have a true coelom?

Correct Answer
verified

The observation that Tiktaalik had both gills and lungs suggests which of the following?

Correct Answer
verified

Even semi-aquatic reptiles like crocodiles and alligators can spend much of their life on dry land.Which of the following is an example of an adaptation that would allow reptiles to live and reproduce on dry land?

Correct Answer
verified

An animal that maintains their body temperature by using heat generated from their own metabolism is a(an) :

Correct Answer
verified

Birds that are flightless are classified as:

Correct Answer
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Mammals that lay eggs are:

Correct Answer
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Which of the following is not a characteristic of an annelid?

Correct Answer
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Flukes and tapeworms belong to the phylum:

Correct Answer
verified

Exam 20: Animals

Which of the following characteristics do all animals share?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

A sea squirt is an example of a:

Correct AnswerverifiedShow Answer

At different stages in development a frog may have gills or lungs.Gills and lungs both exchange gases with the atmosphere and are homologous structures.

Correct AnswerverifiedShow Answer

Earthworms have multiple hearts that pump blood throughout the body in vessels.They also ingest soil,digest the organic matter,and eliminate the indigestible particles as castings.Earthworms have which of the following?

Correct AnswerverifiedShow Answer

The embryonic germ layer of tissue in animals that develops into the muscles and reproductive system is the:

Correct AnswerverifiedShow Answer

Centipedes,earthworms,and roundworms all illustrate segmentation.

Correct AnswerverifiedShow Answer

Which of the following is an amphibian?

Correct AnswerverifiedShow Answer

Spiders and scorpions belong to the phylum:

Correct AnswerverifiedShow Answer

A bony or cartilaginous structure that surrounds and protects the brain of chordates is a(an) :

Correct AnswerverifiedShow Answer

Which of the following are characteristics of hagfishes?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which of the following does not have a true coelom?

Correct AnswerverifiedShow Answer

The observation that Tiktaalik had both gills and lungs suggests which of the following?

Correct AnswerverifiedShow Answer

Even semi-aquatic reptiles like crocodiles and alligators can spend much of their life on dry land.Which of the following is an example of an adaptation that would allow reptiles to live and reproduce on dry land?

Correct AnswerverifiedShow Answer

An animal that maintains their body temperature by using heat generated from their own metabolism is a(an) :

Correct AnswerverifiedShow Answer

Birds that are flightless are classified as:

Correct AnswerverifiedShow Answer

Mammals that lay eggs are:

Correct AnswerverifiedShow Answer

Which of the following is not a characteristic of an annelid?

Correct AnswerverifiedShow Answer

Flukes and tapeworms belong to the phylum:

Correct AnswerverifiedShow Answer

Correct Answer
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