2. b. frog
c. salamander
d. shark
e. mammalian
Question 3
Correct
The first member of genus Homo to use fire is
Select one:
a. Australopithecus
robustus.
b. Australopithecus
africanus.
c. Homo habilis.
d. Homo erectus.
e. Homo sapiens.
Question 4
Correct
3. Although adult tunicates are stuck to the ocean bottom, they are considered early
relatives of vertebrates because
Select one:
a. tunicate gill slits are like ribs.
b. tunicate adults have a notochord.
c. tunicate larvae have a notochord.
d. all vertebrate embryos go through a stage that resembles adult tunicates.
e. tunicate adults have all four chordate characteristics.
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Question 5
Endothermic animals with four-chambered hearts include the
Select one:
a. amphibians.
b. reptiles.
c. fish.
d. arthropods.
e. birds.
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4. Question 6
Which of these is NOT a true statement?
Select one:
a. All chordates are vertebrates.
b. All vertebrates are chordates.
c. Tunicates and lancelets are invertebrate chordates.
d. Echinoderms and chordates are deuterostomes.
e. Sea squirts are invertebrate chordates.
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Question 7
Which of the following is NOT a unique characteristic of chordates at some time in their
life history?
Select one:
a. a dorsal notochord
b. a ventral hollow nerve cord
c. pharyngeal pouches
d. gill clefts
5. e. a post-anal tail
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Question 8
Both echinoderms and chordates are deuterostomes, this means that
Select one:
a. They have a similar development in their embryonic stages.
b. They both have eyes that have 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.
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Question 9
Non-vertebrate chordates, tunicates and lancelets, differ from other chordates in that
Select one:
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.
6. d. The notochord of non-vertebrate chordates does not become a vertebral column.
e. Non-vertebrate chordates do not have a internal bony skeleton while all other chordates
do.
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Question 10
Which of the following characteristics is NOT a distinguishing feature of all primates?
Select one:
a. opposable thumb
b. fingernails
c. usually single birth
d. extended period of parental care
e. expanded hindbrain
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Question 11
Which of these is a proper contrast between birds and mammals?
Select one:
a. Birds are cold-blooded; mammals are warm-blooded.
b. Birds are egg laying; no mammals lay eggs.
7. c. Birds have air sacs in addition to lungs; mammals have no air sacs.
d. Birds lack a septum between the ventricles; mammals have a septum between the
ventricles.
e. Birds, unlike mammals, require no parental care.
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Question 12
