Question 1

Identify the four morphological traits unique to the chordates.

Accepted Answer

1. A dorsal supporting rod cal

Question 2

The respiratory advantage provided by a four-chambered heart over a three-chambered heart in vertebrates is

Accepted Answer

A)  the combining of oxygen-rich blood with oxygen-poor blood. 
B)  a reduction in the amount of hemoglobin required. 
C)  decreased dependency on lungs. 
D)  separation of oxygen-rich blood and oxygen-poor blood. 
E)  a greater surface area for the diffusion of oxygen into the blood. 
A)  the combining of oxygen-rich blood with oxygen-poor blood. 
B)  a reduction in the amount of hemoglobin required. 
C)  decreased dependency on lungs. 
D)  separation of oxygen-rich blood and oxygen-poor blood. 
E)  a greater surface area for the diffusion of oxygen into the blood.

Question 3

Which of these made advanced tools and produced artwork?

Accepted Answer

A)  Homo erectus 
B)  Homo habilis 
C)  Cro-Magnon man 
D)  Neanderthal man 
E)  Homo ergaster 
A)  Homo erectus 
B)  Homo habilis 
C)  Cro-Magnon man 
D)  Neanderthal man 
E)  Homo ergaster

Question 4

Defining characteristics of chordates are

Accepted Answer

A)  segmentation, dorsal hollow nerve cord, gill arches or pharyngeal pouches. 
B)  dorsal hollow nerve cord, notochord, bilateral symmetry, and postanal tail. 
C)  bilateral symmetry, segmentation, and well-developed coelom. 
D)  well-developed coelom, gill arches or pharyngeal pouches, and notochord. 
E)  gill arches or pharyngeal pouches, dorsal tubular nerve cord, notochord, and postanal tail. 
A)  segmentation, dorsal hollow nerve cord, gill arches or pharyngeal pouches. 
B)  dorsal hollow nerve cord, notochord, bilateral symmetry, and postanal tail. 
C)  bilateral symmetry, segmentation, and well-developed coelom. 
D)  well-developed coelom, gill arches or pharyngeal pouches, and notochord. 
E)  gill arches or pharyngeal pouches, dorsal tubular nerve cord, notochord, and postanal tail.

Question 5

Which of the following features inaccurately describes birds?

Accepted Answer

A)  feathers 
B)  air sacs 
C)  variable body temperature 
D)  hard-shelled egg 
E)  four-chambered heart 
A)  feathers 
B)  air sacs 
C)  variable body temperature 
D)  hard-shelled egg 
E)  four-chambered heart

Question 6

The first member of genus Homo to use fire is

Accepted Answer

A)  Australopithecus robustus. 
B)  Australopithecus africanus. 
C)  Homo habilis. 
D)  Homo erectus. 
E)  Homo sapiens. 
A)  Australopithecus robustus. 
B)  Australopithecus africanus. 
C)  Homo habilis. 
D)  Homo erectus. 
E)  Homo sapiens.

Question 7

Which of the following sequences correctly represents vertebrate evolution?

Accepted Answer

A)  jawless fish → lobe-finned fish → amphibians → reptiles → mammals 
B)  jawless fish → amphibians → reptiles → lobe-finned fish → mammals 
C)  mammals → lobe-finned fish → reptiles → jawless fish → amphibians 
D)  lobe-finned fish → mammals → reptiles → jawless fish → amphibians 
E)  lobe-finned fish → reptiles → mammals → jawless fish → amphibians 
A)  jawless fish → lobe-finned fish → amphibians → reptiles → mammals 
B)  jawless fish → amphibians → reptiles → lobe-finned fish → mammals 
C)  mammals → lobe-finned fish → reptiles → jawless fish → amphibians 
D)  lobe-finned fish → mammals → reptiles → jawless fish → amphibians 
E)  lobe-finned fish → reptiles → mammals → jawless fish → amphibians

Question 8

Which of these characteristics first developed in reptiles?

Accepted Answer

A)  amniotic egg 
B)  scales on skin 
C)  four-legged body 
D)  skull and vertebral column 
E)  animals with lungs 
A)  amniotic egg 
B)  scales on skin 
C)  four-legged body 
D)  skull and vertebral column 
E)  animals with lungs

Question 9

Endothermic animals with four-chambered hearts include the

Accepted Answer

A)  amphibians. 
B)  reptiles. 
C)  fish. 
D)  arthropods. 
E)  birds. 
A)  amphibians. 
B)  reptiles. 
C)  fish. 
D)  arthropods. 
E)  birds.

Question 10

Animals with a three-chambered heart would include

Accepted Answer

A)  amphibians. 
B)  mammals. 
C)  fish. 
D)  sharks. 
E)  birds. 
A)  amphibians. 
B)  mammals. 
C)  fish. 
D)  sharks. 
E)  birds.

Question 11

Nonvertebrate chordates, tunicates, and lancelets differ from other chordates in that

Accepted Answer

A)  they do not have a notochord. 
B)  they have gills, while other chordates have lungs. 
C)  they do not have jaws, while all other chordates do have them. 
D)  the notochord of nonvertebrate chordates does not become a vertebral column. 
E)  nonvertebrate chordates do not have an internal bony skeleton, while all other chordates do. 
A)  they do not have a notochord. 
B)  they have gills, while other chordates have lungs. 
C)  they do not have jaws, while all other chordates do have them. 
D)  the notochord of nonvertebrate chordates does not become a vertebral column. 
E)  nonvertebrate chordates do not have an internal bony skeleton, while all other chordates do.

Question 12

Which of the following are believed to be the first group of hominids that buried their dead?

Accepted Answer

A)  Homo habilis 
B)  Homo erectus 
C)  Peking man 
D)  Homo neanderthalensis 
E)  Cro-Magnon 
A)  Homo habilis 
B)  Homo erectus 
C)  Peking man 
D)  Homo neanderthalensis 
E)  Cro-Magnon

Question 13

Which of the following is a characteristic unique to chordates?

Accepted Answer

A)  a dorsal notochord 
B)  a ventral hollow nerve cord 
C)  pharyngeal pouches 
D)  a postanal tail 
E)  All of the answer choices are unique characteristics of chordates. 
A)  a dorsal notochord 
B)  a ventral hollow nerve cord 
C)  pharyngeal pouches 
D)  a postanal tail 
E)  All of the answer choices are unique characteristics of chordates.

Question 14

Which of the following is a characteristic of primates?

Accepted Answer

A)  nails rather than claws 
B)  a larger brain (cerebral) volume 
C)  opposable thumb and sometimes large toe 
D)  good hand-eye coordination 
E)  All of the answer choices describe characteristics of primates. 
A)  nails rather than claws 
B)  a larger brain (cerebral) volume 
C)  opposable thumb and sometimes large toe 
D)  good hand-eye coordination 
E)  All of the answer choices describe characteristics of primates.

Question 15

The amphibian heart has

Accepted Answer

A)  two separate atria and two separate ventricles that partition oxygen-rich and oxygen-poor blood. 
B)  two separate atria and one shared ventricle that allow oxygen-rich and oxygen-poor blood to mix. 
C)  two separate ventricles and one shared atrium that allow oxygen-rich and oxygen-poor blood to mix. 
D)  one atrium and one ventricle similar to the fish. 
E)  one atrium and one ventricle but reroutes the blood through the heart after passing through the gills. 
A)  two separate atria and two separate ventricles that partition oxygen-rich and oxygen-poor blood. 
B)  two separate atria and one shared ventricle that allow oxygen-rich and oxygen-poor blood to mix. 
C)  two separate ventricles and one shared atrium that allow oxygen-rich and oxygen-poor blood to mix. 
D)  one atrium and one ventricle similar to the fish. 
E)  one atrium and one ventricle but reroutes the blood through the heart after passing through the gills.

Question 16

In vertebrates, what is the embryonic structure that is replaced by the vertebral column?

Accepted Answer

A)  notochord 
B)  nerve cord 
C)  pharyngeal pouches 
D)  gill clefts 
E)  deuterostomes 
A)  notochord 
B)  nerve cord 
C)  pharyngeal pouches 
D)  gill clefts 
E)  deuterostomes

Question 17

Both echinoderms and chordates are deuterostomes. This means that

Accepted Answer

A)  they have a similar development in their embryonic stages. 
B)  they both have eyes with retinas. 
C)  they both start with radial symmetry in their early embryonic stages. 
D)  they both use calcium-based endoskeletons. 
E)  they are both invertebrates. 
A)  they have a similar development in their embryonic stages. 
B)  they both have eyes with retinas. 
C)  they both start with radial symmetry in their early embryonic stages. 
D)  they both use calcium-based endoskeletons. 
E)  they are both invertebrates.

Question 18

The duckbill platypus is an exception to many mammals because it

Accepted Answer

A)  lacks hair. 
B)  is ectothermic. 
C)  doesn't secrete milk. 
D)  lays eggs. 
E)  is found in Australia. 
A)  lacks hair. 
B)  is ectothermic. 
C)  doesn't secrete milk. 
D)  lays eggs. 
E)  is found in Australia.

Question 19

The primary distinguishing characteristic of all mammals is the presence of

Accepted Answer

A)  constant internal temperature. 
B)  four limbs. 
C)  a four-chambered heart. 
D)  hair and mammary glands. 
E)  a placenta. 
A)  constant internal temperature. 
B)  four limbs. 
C)  a four-chambered heart. 
D)  hair and mammary glands. 
E)  a placenta.

Question 20

Because most birds travel through the air at high speeds, they must have

Accepted Answer

A)  a crop and a gizzard. 
B)  highly sensitive sensory systems. 
C)  complex songs. 
D)  eggs and no placenta. 
E)  a three-chambered heart. 
A)  a crop and a gizzard. 
B)  highly sensitive sensory systems. 
C)  complex songs. 
D)  eggs and no placenta. 
E)  a three-chambered heart.

Exam 32: Animals: Chordates and Vertebrates

Identify the four morphological traits unique to the chordates.

The respiratory advantage provided by a four-chambered heart over a three-chambered heart in vertebrates is

Which of these made advanced tools and produced artwork?

Defining characteristics of chordates are

Which of the following features inaccurately describes birds?

The first member of genus Homo to use fire is

Which of the following sequences correctly represents vertebrate evolution?

Which of these characteristics first developed in reptiles?

Endothermic animals with four-chambered hearts include the

Animals with a three-chambered heart would include

Nonvertebrate chordates, tunicates, and lancelets differ from other chordates in that

Which of the following are believed to be the first group of hominids that buried their dead?

Which of the following is a characteristic unique to chordates?

Which of the following is a characteristic of primates?

The amphibian heart has

In vertebrates, what is the embryonic structure that is replaced by the vertebral column?

Both echinoderms and chordates are deuterostomes. This means that

The duckbill platypus is an exception to many mammals because it

The primary distinguishing characteristic of all mammals is the presence of

Because most birds travel through the air at high speeds, they must have

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