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All of the following adaptations have contributed to the success of the insects EXCEPT
a. specialized sensory organs
b. wings
c. small body size
d. aquatic habitat

A water-vascular system is characteristic of the
a. arthropods
b. annelids
c. chordates
d. echinoderms

Which of the following is not a member of the phylum Platyhelminthes?
a. a fluke
b. an annelid
c. a planarian
d. a tapeworm

The ______ are bilateral, coelomate, segmented worms that have complex organ systems.
a. ribbon worms
b. annelids
c. roundworms
d. tapeworms

Spiders, ticks, and mites are
a. arthropods
b. arachnids
c. coelomate
d. all of the above

Insects get rid of waste by means of
a. collar cells
b. contractile vacuoles
c. Malpighian tubules
d. nephridia

Which of the following stages does not occur in insects that undergo incomplete metamorphosis?
a. egg
b. nymph
c. pupa
d. adult

Roundworms belong to the ______ Nematoda.
a. kingdom
b. order
c. family
d. phylum

The only arthropods to have calcified shells are the
a. bivalves
b. gastropods
c. barnacles
d. arachnids

Tube feet are
a. fluid-filled muscular structures
b. part of the water-vascular system
c. unique to echinoderms
d. all of the above

In annelids, a system of ______ regulates the volume and composition of body fluids.
a. flame cells
b. nephridia
c. Malpighian tubules
d. gills

A hardened exoskeleton and jointed appendages are two of the adaptations that have made the ______ so successful.
a. mollusks
b. echinoderms
c. arthropods
d. annelids

Which of the following shows no body symmetry?
a. an arthropod
b. a sponge
c. a cnidarian
d. an echinoderm

In ______, a gelatinous mesoglea imparts buoyancy and acts as a deformable skeleton against which contractile cells act.
a. sponges
b. insects
c. cnidarians
d. echinoderms

The phylum ______ includes only one living species.
a. Arthropoda
b. Porifera
c. Placozoa
d. Platyhelminthes

Most flatworms are
a. coelomate
b. hermaphroditic
c. parasitic
d. radially symmetrical

Two cnidarian body types are the __________ and the __________.
A. pupa,larva
B. starfish,brittlestar
C. round, oval
D. Medusa,polyp

Southeast Asian blood flukes, tapeworms, and pinworms are examples of __________ parasites
A. cattle
B. human
C. fish
D. ecto-

The Hydra shows ____________ Symmetry.
a. bilateral
b. radial
c. spherical
d. longitudinal

How do most sponges acquire the organic compounds they need?
a. filter feeding
b. photosynthesis
c. agression
d. carnivorous feeding

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Solution Preview

1. D. aquatic habitat
2. D. echinoderms
3. B. annelid
4. B. annelids
5. D. all of the ...