Question 1

In animals,a sphere of embryonic cells surrounding a fluid-filled cavity is called a:

Accepted Answer

A)  Gastrovascular cavity
B)  Blastula
C)  Coelom
D)  Gastrula
E)  Hydrostatic skeletonF) B) and E)
G) B) and D)

Question 2

The function of vertebrae is to:

Accepted Answer

A)  Protect the nerve chord
B)  Provide attachment points for muscles
C)  Protect the nerve cord and provide attachment points for muscles
D)  Protect the brain
E)  Protect the brain and nerve cordF) D) and E)
G) A) and D)

Question 3

Bats,birds,and dragonflies can all fly.Which of the following groups of animals have some members capable of flight?

Accepted Answer

A)  Reptiles, amphibians, and arthropods
B)  Reptiles and mammals
C)  Mammals and arthropods
D)  Amphibians and arthropods
E)  Reptiles, arthropods, and mammalsF) None of the above
G) All of the above

Question 4

The type of body symmetry in which only one plane divides the body into mirror images is:

Accepted Answer

A)  Radial symmetry
B)  Bilateral symmetry
C)  Longitudinal symmetry
D)  Mirrored symmetry
E)  AsymmetricalF) B) and E)
G) A) and E)

Question 5

Bats,birds,and dragonflies can all fly,therefore the evolution of flight in animals must have occurred more than once.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following is not a characteristic of mammals?

Accepted Answer

A)  They have a two-chambered heart
B)  They are endothermic
C)  They have lungs
D)  They have an amnion
E)  They have a skeletal system composed of boneF) A) and E)
G) B) and E)

Question 7

Corals and jellyfish belong to the phylum:

Accepted Answer

A)  Porifera
B)  Cnidaria
C)  Platyhelminthes
D)  Nematoda
E)  AnnelidaF) D) and E)
G) None of the above

Question 8

Which adaptations in fishes enabled vertebrates to thrive on land?

Accepted Answer

A)  Limbs
B)  Lungs and limbs
C)  Lungs
D)  Fins
E)  Lungs and finsF) All of the above
G) A) and C)

Question 9

Fossil and DNA evidence indicate that birds are members of a clade in which group?

Accepted Answer

A)  Mammals
B)  Reptiles
C)  Amphibians
D)  Fishes
E)  They are in their own groupF) C) and D)
G) A) and E)

Question 10

A fluid-filled body cavity that forms completely within the mesoderm of animals is a:

Accepted Answer

A)  Coelom
B)  Blastula
C)  Gastrula
D)  Protostome
E)  DeuterostomeF) A) and D)
G) A) and C)

Question 11

Which of the following were the first vertebrates to truly thrive on land?

Accepted Answer

A)  Amphibians
B)  Birds
C)  Mammals
D)  Reptiles
E)  FishF) B) and C)
G) A) and B)

Question 12

Which of the following is a jawless fish?

Accepted Answer

A)  Skates
B)  Sharks
C)  Tuna
D)  Salmon
E)  LampreysF) A) and D)
G) C) and E)

Question 13

The three major body regions of many arthropods are:

Accepted Answer

A)  Head, thorax, and abdomen
B)  Head, abdomen, and legs
C)  Head, thorax, and legs
D)  Head, gastrovascular cavity, and thorax
E)  Head, gills, and legsF) C) and D)
G) C) and E)

Question 14

Snails and squids belong to the phylum:

Accepted Answer

A)  Cnidaria
B)  Porifera
C)  Platyhelminthes
D)  Mollusca
E)  AnnelidaF) All of the above
G) C) and D)

Question 15

The most successful phylum in regards to diversity and numbers is:

Accepted Answer

A)  Mollusca
B)  Nematoda
C)  Platyhelminthes
D)  Arthropoda
E)  EchinodermataF) A) and B)
G) D) and E)

Question 16

Which of the following were the first vertebrates to appear on land?

Accepted Answer

A)  Amphibians
B)  Reptiles
C)  Birds
D)  Mammals
E)  FishF) A) and E)
G) C) and D)

Question 17

A complete digestive tract has both a mouth and an anus and the food passes in one direction from the mouth to the anus.

Accepted Answer

A) True 
 B)False

Question 18

Tiktaalik either crawled or paddled in shallow tropical streams about 380 mya,during the late Devonian period.These shallow waters often became anaerobic.What selective advantage would Tiktaalik have under these conditions?

Accepted Answer

A)  It could lift its head out of the water and breathe air through its gills
B)  It could crawl out of the water and walk over to new shallow streams
C)  It could swim better than fish
D)  It could crawl on shore and feed on birds and reptiles that were on land
E)  It could lift its head out of the water and breathe air through its lungsF) C) and D)
G) A) and B)

Question 19

A mollusk that has arms connecting directly to the head of the animal is a:

Accepted Answer

A)  Gastropod
B)  Cephalopod
C)  Bivalve
D)  Chiton
E)  FlukeF) A) and B)
G) B) and D)

Question 20

Cnidarians are:

Accepted Answer

A)  Land dwelling animals
B)  Arboreal animals
C)  Both land dwelling and arboreal animals
D)  Both land dwelling and aquatic animals
E)  Aquatic animalsF) A) and B)
G) B) and C)

Exam 20: Animals

Bats,birds,and dragonflies can all fly,therefore the evolution of flight in animals must have occurred more than once.

Correct AnswerverifiedShow Answer

A complete digestive tract has both a mouth and an anus and the food passes in one direction from the mouth to the anus.

Correct AnswerverifiedShow Answer

Fossil and DNA evidence indicate that birds are members of a clade in which group?

Correct AnswerverifiedShow Answer

Corals and jellyfish belong to the phylum:

Correct AnswerverifiedShow Answer

The most successful phylum in regards to diversity and numbers is:

Correct AnswerverifiedShow Answer

Which of the following were the first vertebrates to appear on land?

Correct AnswerverifiedShow Answer

Snails and squids belong to the phylum:

Correct AnswerverifiedShow Answer

In animals,a sphere of embryonic cells surrounding a fluid-filled cavity is called a:

Correct AnswerverifiedShow Answer

Cnidarians are:

Correct AnswerverifiedShow Answer

The three major body regions of many arthropods are:

Correct AnswerverifiedShow Answer

Bats,birds,and dragonflies can all fly.Which of the following groups of animals have some members capable of flight?

Correct AnswerverifiedShow Answer

A fluid-filled body cavity that forms completely within the mesoderm of animals is a:

Correct AnswerverifiedShow Answer

Which of the following were the first vertebrates to truly thrive on land?

Correct AnswerverifiedShow Answer

The type of body symmetry in which only one plane divides the body into mirror images is:

Correct AnswerverifiedShow Answer

Tiktaalik either crawled or paddled in shallow tropical streams about 380 mya,during the late Devonian period.These shallow waters often became anaerobic.What selective advantage would Tiktaalik have under these conditions?

Correct AnswerverifiedShow Answer

Which of the following is a jawless fish?

Correct AnswerverifiedShow Answer

Which of the following is not a characteristic of mammals?

Correct AnswerverifiedShow Answer

The function of vertebrae is to:

Correct AnswerverifiedShow Answer

A mollusk that has arms connecting directly to the head of the animal is a:

Correct AnswerverifiedShow Answer

Which adaptations in fishes enabled vertebrates to thrive on land?

Correct AnswerverifiedShow Answer

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