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Multiple Choice Quiz
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1

Which feature is not characteristic of the animals?
A)multicellular heterotrophs
B)sexual reproduction
C)embryonic development
D)cell walls
2

Most of the phyla of the animal kingdom are found
A)on land.
B)in the ocean.
C)burrowing underground.
D)in freshwater habitats.
3

The subkingdom of animals that lack symmetry and have no true tissues or organs is the
A)Eumetazoa.
B)Radiata.
C)Parazoa.
D)Bilateria.
4

Except for the Radiata, the eumetazoans
A)lack true tissues and organs.
B)are monoblastic.
C)are diploblastic.
D)are triploblastic.
5

Cnidarians and ctenophorans differ from other eumetazoans by having
A)radial symmetry.
B)bilateral symmetry.
C)major organ systems.
D)three tissue layers.
6

The advantage of bilateral symmetry is that it allowed for the evolution of
A)appendages.
B)cephalization.
C)reproductive structures.
D)parasites.
7

Members of which group are not deuterostomes?
A)chordates
B)echinoderms
C)arthropods
D)none of these, all are deuterostomes
8

The evolution of an internal body cavity offered an advantage in animal body design in all areas except
A)circulation.
B)digestion.
C)freedom of movement.
D)gamete storage.
9

The segments of annelids are
A)apparent in the embryo but not in the adult.
B)specialized for different functions.
C)most obvious in the mesoderm (muscles) but not in the ectoderm.
D)repetitive-each able to develop a complete set of adult organs.
10

Which of the following hypotheses about the origin of metazoans is supported by ribosomal RNA analysis?
A)the multinucleate hypothesis
B)the colonial flagellate hypothesis
C)the polyphyletic origin hypothesis
D)None of these; rRNA analysis doesn't support any specific hypothesis.







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