POB SHADWICK EXAM 4 (FINAL)
CHAPTER QUESTIONS
1.0Which0of0the0following0is0NOT0a0unique0characteristic0of0all0chordates0at0some0time
0in0their0life0history?
A.0a0dorsal0notochord
B.0a0ventral0hollow0nerve0cord
C.0pharyngeal0pouches
D.0radial0symmetry
E.0a0postanal0tail0-0ans✔D
Defining0characteristics0of0chordates0are
A.0segmentation,0dorsal0hollow0nerve0cord,0gill0arches0or0pharyngeal0pouches.
B.0dorsal0hollow0nerve0cord,0notochord,0bilateral0symmetry,0and0postanal0tail.
C.0bilateral0symmetry,0segmentation,0and0well-developed0coelom.
D.0gill0arches0or0pharyngeal0pouches,0dorsal0tubular0nerve0cord,0notochord,0and0posta
nal0tail.0-0ans✔D
Which0of0the0following0sequences0correctly0represents0vertebrate0evolution?
A.0jawless0fish0-0lobe-finned0fish0-0amphibians0-0reptiles0-0mammals
B.0jawless0fish0-0amphibians0-0reptiles0-0lobe-finned0fish0-0mammals
C.0lobe-finned0fish0-0mammals0-0reptiles0-0jawless0fish0-0amphibians
D.0lobe-finned0fish0-0reptiles0-0mammals0-0jawless0fish0-0amphibians0-0ans✔A
In0vertebrates,0the0_______0is/are0usually0replaced0by0________.
A.0pharyngeal0pouches;0gill0arches
B.0dorsal0hollow0nerve0cord;0a0ventral0solid0nerve0cord
C.0gill0arches;0pharyngeal0pouches
D.0notochord;0a0dorsal0hollow0nerve0cord
E.0notochord;0a0vertebral0column0-0ans✔E
What0is0the0correct0evolutionary0pathway0for0the0key0features0of0chordates?
, A.0notochord0-0vertebrae0-0jaws0-0bony0skeleton0-0lungs0-040limbs0-0amniotic0egg0-
0mammary0glands
B.0vertebrae0-0notochord-0jaws0-0bony0skeleton0-0lungs0-040limbs0-0amniotic0egg0-
0mammary0glands
C.0notochord0-0vertebrae0-0jaws0-0bony0skeleton0-0lungs0-0amniotic0egg0-040limbs0-
0mammary0glands
D.0notochord0-0vertebrae0-0jaws0-0bony0skeleton0-0mammary0glands0-0lungs0-040limbs0-
0amniotic0egg0-0ans✔A
Jaws0are0believed0to0have0evolved0from0the
A.0cranium.
B.0first0ribs.
C.0first0pair0of0gill0arches.
D.0suckers0of0lampreys.0-0ans✔C
The0lancelets0are0found
A.0as0parasites0inside0the0tracts0of0fish.
B.0very0rarely0in0mountain0streams,0where0they0are0almost0extinct.
C.0commonly0in0the0sandy0bottoms0of0shallow0coastal0waters0around0the0world.
D.0on0the0bottom0of0the0ocean.0-0ans✔C
Which0of0these0is0NOT0a0characteristic0of0a0shark?
A.0ability0to0sense0electric0currents0in0the0water
B.0skeleton0of0cartilage
C.0a0sucker0used0to0attach0to0prey
D.0ability0to0sense0pressure0of0other0swimming0objects
E.0ability0to0detect0blood0in0minute0amounts0-0ans✔C
Sharks
A.0have0bone0skeletons.
B.0lack0jaws.
C.0have0a0keen0sense0of0smell.
D.0lack0the0lateral0line0system0of0bony0fishes.0-0ans✔C
of0the0following,0the0most0recent0ancestor0of0amphibians0would0be
A.0hagfish.
B.0coelacanth.
C.0skate.
D.0ray-finned0fish.0-0ans✔B
CHAPTER QUESTIONS
1.0Which0of0the0following0is0NOT0a0unique0characteristic0of0all0chordates0at0some0time
0in0their0life0history?
A.0a0dorsal0notochord
B.0a0ventral0hollow0nerve0cord
C.0pharyngeal0pouches
D.0radial0symmetry
E.0a0postanal0tail0-0ans✔D
Defining0characteristics0of0chordates0are
A.0segmentation,0dorsal0hollow0nerve0cord,0gill0arches0or0pharyngeal0pouches.
B.0dorsal0hollow0nerve0cord,0notochord,0bilateral0symmetry,0and0postanal0tail.
C.0bilateral0symmetry,0segmentation,0and0well-developed0coelom.
D.0gill0arches0or0pharyngeal0pouches,0dorsal0tubular0nerve0cord,0notochord,0and0posta
nal0tail.0-0ans✔D
Which0of0the0following0sequences0correctly0represents0vertebrate0evolution?
A.0jawless0fish0-0lobe-finned0fish0-0amphibians0-0reptiles0-0mammals
B.0jawless0fish0-0amphibians0-0reptiles0-0lobe-finned0fish0-0mammals
C.0lobe-finned0fish0-0mammals0-0reptiles0-0jawless0fish0-0amphibians
D.0lobe-finned0fish0-0reptiles0-0mammals0-0jawless0fish0-0amphibians0-0ans✔A
In0vertebrates,0the0_______0is/are0usually0replaced0by0________.
A.0pharyngeal0pouches;0gill0arches
B.0dorsal0hollow0nerve0cord;0a0ventral0solid0nerve0cord
C.0gill0arches;0pharyngeal0pouches
D.0notochord;0a0dorsal0hollow0nerve0cord
E.0notochord;0a0vertebral0column0-0ans✔E
What0is0the0correct0evolutionary0pathway0for0the0key0features0of0chordates?
, A.0notochord0-0vertebrae0-0jaws0-0bony0skeleton0-0lungs0-040limbs0-0amniotic0egg0-
0mammary0glands
B.0vertebrae0-0notochord-0jaws0-0bony0skeleton0-0lungs0-040limbs0-0amniotic0egg0-
0mammary0glands
C.0notochord0-0vertebrae0-0jaws0-0bony0skeleton0-0lungs0-0amniotic0egg0-040limbs0-
0mammary0glands
D.0notochord0-0vertebrae0-0jaws0-0bony0skeleton0-0mammary0glands0-0lungs0-040limbs0-
0amniotic0egg0-0ans✔A
Jaws0are0believed0to0have0evolved0from0the
A.0cranium.
B.0first0ribs.
C.0first0pair0of0gill0arches.
D.0suckers0of0lampreys.0-0ans✔C
The0lancelets0are0found
A.0as0parasites0inside0the0tracts0of0fish.
B.0very0rarely0in0mountain0streams,0where0they0are0almost0extinct.
C.0commonly0in0the0sandy0bottoms0of0shallow0coastal0waters0around0the0world.
D.0on0the0bottom0of0the0ocean.0-0ans✔C
Which0of0these0is0NOT0a0characteristic0of0a0shark?
A.0ability0to0sense0electric0currents0in0the0water
B.0skeleton0of0cartilage
C.0a0sucker0used0to0attach0to0prey
D.0ability0to0sense0pressure0of0other0swimming0objects
E.0ability0to0detect0blood0in0minute0amounts0-0ans✔C
Sharks
A.0have0bone0skeletons.
B.0lack0jaws.
C.0have0a0keen0sense0of0smell.
D.0lack0the0lateral0line0system0of0bony0fishes.0-0ans✔C
of0the0following,0the0most0recent0ancestor0of0amphibians0would0be
A.0hagfish.
B.0coelacanth.
C.0skate.
D.0ray-finned0fish.0-0ans✔B
