Multiple Choice
Identify the letter of the choice that
best completes the statement or answers the question.
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1.
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The
notochord is most closely associated with the a. | nervous system. | b. | spinal cord. | c. | skeletal system. | d. | skin system. | | |
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2.
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The
only chordate feature still present in the human adult is a. | pharyngeal gill slits. | b. | nerve cord. | c. | notochord. | d. | tail. | e. | all of these | | |
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3.
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Which
of the following is NOT a feature that is found exclusively among all vertebrates? a. | notochord | b. | pharyngeal gill slits | c. | four legs | d. | post-anal tail | e. | dorsal nerve cord | | |
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4.
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The
most primitive, but still existing, vertebrates are members of the class a. | Agnatha. | b. | Amphibia. | c. | Chondrichthyes. | d. | Aves. | e. | Osteichthyes. | | |
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5.
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The
feeding habits of lampreys are best described as a. | suspension feeding. | b. | predatory. | c. | parasitic. | d. | scavenging. | e. | all of these | | |
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6.
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The
vertebrate jaw first appeared in a. | fishes. | b. | amphibians. | c. | reptiles. | d. | birds. | e. | mammals. | | |
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7.
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Sharks, rays, and skates belong to the class a. | Aves. | b. | Amphibia. | c. | Chondrichthyes. | d. | Osteichthyes. | e. | Reptilia. | | |
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8.
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Amphibians are completely dependent on an aquatic environment for a. | respiration. | b. | feeding. | c. | reproduction. | d. | respiration and reproduction. | e. | respiration, reproduction, and
feeding. | | |
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9.
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Exchange of respiratory gases through the skin is a characteristic of
many a. | fish. | b. | amphibians. | c. | reptiles. | d. | mammals. | e. | birds. | | |
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10.
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Birds
differ from earlier vertebrates by a. | their lack of scales. | b. | the land egg. | c. | the ability to maintain a constant body
temperature. | d. | the ability to
fertilize eggs internally. | e. | their possession of a dorsal nerve
cord. | | |
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11.
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Egg-laying mammals a. | cannot feed their young with
milk. | b. | have no
teeth. | c. | are
hairless. | d. | are confined to
South America. | e. | bear their young
into pouches. | | |
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12.
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Four
of the five answers below characterize a group of chordates. Select the exception. a. | feathers | b. | ectothermic | c. | four-chambered heart | d. | hollow skeleton | e. | no teeth | | |
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Matching
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Choose
the one most appropriate letter for each blank. a. | cartilaginous skeleton; jaws | b. | jawless fishes; now extinct | c. | placental mammal | d. | legless amphibian | e. | invertebrate chordate; no
metamorphosis | f. | endotherm with
feathers | g. | limbless
reptile | h. | most primitive
fishes with jaws | i. | modern-day parasitic agnathan | j. | marsupial | k. | adult is called "sea
squirt" | l. | egg-laying
mammal | m. | swim bladder for
buoyancy | n. | may be sexually
mature but not adult | | |
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13.
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birds
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14.
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bony
fishes
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15.
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humans
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16.
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lampreys
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17.
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opossum
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18.
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platypus
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19.
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sharks
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20.
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snakes
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Answer
the following questions in reference to the five classes listed below: a. | Agnatha | b. | Chondrichthyes | c. | Osteichthyes | d. | Amphibia | e. | Reptilia | | |
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21.
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Members of this class are fully terrestrial except for reproduction.
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22.
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Ostracoderms could qualify for membership in this class.
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23.
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Members of this class have cartilaginous skeletons but also possess
jaws.
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24.
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Some
species of this class live in water but are not dependent upon an aquatic environment.
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25.
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Members of one unusual class may have been ancestors of amphibians.
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