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Animals that have no parcular symmetry
exhibit Select one:
a. asymmetry.
b. radial symmetry.
c. bilateral symmetry.
d. trilateral symmetry.
e. spherical symmetry.
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The correct answer is: asymmetry.
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Which of the following is NOT a characterisc of echinoderms?
Select one:
a. adult is radially symmetrical
b. locomoon by muscles
c. endoskeleton of spiny, calcium-rich plates
d. larva is bilaterally symmetrical
e. both sexual and asexual reproducon
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The correct answer is: locomoon by muscles
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The life cycle of
animals Select one:
a. demonstrates alternaon of generaons, where the zygote is haploid and the adult is diploid.
b. does not demonstrate alternaon of generaons. Both the zygote and the adult are haploid.
c. demonstrates alternaon of generaons, where the zygote is diploid and the adult is haploid.
d. does not demonstrate alternaon of generaons because only the spores are haploid.
e. does not demonstrate alternaon of generaons; gametes are haploid and the organism is
diploid.
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The correct answer is: does not demonstrate alternaon of generaons; gametes are haploid and the
organism is diploid.
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Which difference disnguishes protostomes from deuterostomes?
Select one:
a. One has a nervous system, and one doesn't.
b. Their embryonic development is different.
c. One has a circulatory system and one doesn't.
d. One has cephalizaon and one doesn't.
e. One has a notochord and one
doesn't.
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The correct answer is: Their embryonic development is different.
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Which of the following organisms are considered advanced invertebrates with a true
coelom? Select one:
a. sponges
b. hydras
c. flatworms
d. roundworms
e. earthworms
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The correct answer is: earthworms