Question 1

The term "deuterostome" refers to

Accepted Answer

A)   having a spiny skin.
B)   having three germ layers.
C)   possessing a notochord.
D)   the second embryonic opening becoming the mouth.
E)   the coelom forming by outpocketing of the primitive gut.F) C) and D)
G) None of the above

Question 2

The life cycle of animals

Accepted Answer

A)   Demonstrates alternation of generation, where the zygote is haploid and the adult is diploid.
B)   Does not demonstrate alternation of generation both the zygote and the adult are haploid.
C)   Demonstrates alternation of generation where the zygote is diploid and the adult is haploid.
D)   Does not demonstrate alternation of generation since only the spores are haploid.
E)   Does not demonstrate alternation of generation; gametes are haploid and the organism is diploid.F) A) and B)
G) A) and C)

Question 3

Lophotrochozoa are animals that are organized circularly,so no matter how they are sliced in half longitudinally,mirror images are obtained.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following statements is NOT correct about the flatworms?

Accepted Answer

A)   There are three complete tissue layers.
B)   Flatworms may be either free living or parasitic.
C)   Flatworms have a sac body plan, with only a mouth and no anus.
D)   Parasitic flatworms have a well-developed head with eyespots and nerves concentrated into a brain.
E)   Most planaria are found in marine environments, but some dwell in freshwater and moist terrestrial environments.F) A) and C)
G) B) and C)

Question 5

The insect organ most equivalent to the human lung in function is the

Accepted Answer

A)   tracheae.
B)   midgut.
C)   crop.
D)   gizzard.
E)   Malpighian tubule.F) A) and B)
G) B) and D)

Question 6

In flame cells

Accepted Answer

A)   light is detected.
B)   ciliated sperm are stored.
C)   undigested food is expelled.
D)   slow fires actually burn food for energy.
E)   cilia drive fluids through tubules for excretion of excess water.F) B) and D)
G) C) and D)

Question 7

Which of the following statements about hydra morphology is correct?

Accepted Answer

A)   The hydra has a long single tentacle containing numerous nematocysts.
B)   The hydra has a single polyp that is filled with gas and keeps the organism afloat.
C)   The hydra is bell shaped and has multiple tentacles.
D)   The hydra is a tube shaped polyp that has two layers of tissue.
E)   The hydra is bilaterally symmetrical.F) B) and C)
G) C) and E)

Question 8

Which of the following organisms are considered advanced invertebrates with a true coelom?

Accepted Answer

A)   sponges
B)   hydras
C)   flatworms
D)   roundworms
E)   earthwormsF) B) and C)
G) C) and E)

Question 9

The segments of a tapeworm consisting primarily of eggs,which hang in bags as a long chain behind the head,are called

Accepted Answer

A)   proglottids.
B)   cercariae.
C)   sporocysts.
D)   scolexes.
E)   glycocalyxes.F) None of the above
G) A) and C)

Question 10

Which of the following is generally NOT a characteristic of all animals?

Accepted Answer

A)   They ingest food that is digested in a central cavity.
B)   They produce gametes by meiosis for sexual reproduction.
C)   They produce an embryo that undergoes development in stages.
D)   Animals range from unspecialized single-celled to specialized multicellular forms.
E)   The adult form is diploid.F) A) and C)
G) None of the above

Question 11

A sponge actually feeds by

Accepted Answer

A)   acting as a net in a current that sweeps food particles through it.
B)   squeezing the spongocoel cavity and sucking debris in and out through the osculum.
C)   the beating of the flagella of collar cells, forming a current; food is absorbed by collar cells.
D)   the beating collar cells form a current from osculum to pores; the food is engulfed by amoebocytes in the central cavity of the sponge.
E)   water the moves gently through the sponge and the amoebocytes that engulf passing food.F) None of the above
G) A) and C)

Question 12

How could you possibly become infected with adult tapeworms?

Accepted Answer

A)   eating insufficiently cooked pork
B)   being bitten by a mosquito
C)   ingesting eggs in contaminated water
D)   eating freshly peeled fruit
E)   wading in contaminated waterF) A) and B)
G) A) and C)

Question 13

____ are animals that have three pairs of legs,a tympanum for reception of sound waves,and Malpighian tubules for excretion.

Accepted Answer

A)   Starfish
B)   Lancelets
C)   Crayfish
D)   Grasshoppers
E)   EarthwormsF) B) and E)
G) B) and C)

Question 14

Earthworms differ from most of the marine annelids in that earthworms

Accepted Answer

A)   lack setae that marine annelids have.
B)   lack paddlelike parapodia that marine annelids have.
C)   have segments, while marine annelids do not.
D)   develop from a larval form, while marine annelids do not.
E)   have well-developed brains and sensory organs in the head region, while marine annelids do not.F) B) and D)
G) A) and D)

Question 15

Planaria feed by

Accepted Answer

A)   attaching with a sucker(s)  and extracting blood.
B)   tearing and sucking food particles via a muscular pharynx.
C)   slurping food particles through a mouth and excreting waste via an anus.
D)   soaking all nutrients from the environment through its thin epidermal surface.
E)   grabbing food with tentacles and pulling them into a ventrally located mouth.F) A) and B)
G) B) and E)

Question 16

Which of these parasitic worms is NOT a nematode?

Accepted Answer

A)   Ascaris
B)   Trichinella
C)   the worm that causes elephantiasis
D)   hookworm
E)   the worm that causes schistosomiasisF) C) and D)
G) All of the above

Question 17

Which of the following characteristics is NOT true about deuterostomes?

Accepted Answer

A)   The second opening during embryonic development becomes the mouth.
B)   They include the echinoderms and humans.
C)   They have a coelom.
D)   They include the simplest of invertebrates.
E)   They are typically more advanced than protostomes.F) C) and E)
G) B) and C)

Question 18

Which of the following is NOT characteristic of earthworms?

Accepted Answer

A)   segmentation
B)   expanded dorsal surface of the intestine called a typhlosole
C)   hermaphroditic
D)   paired nephridia in each segment
E)   dorsal solid nerve cordF) A) and B)
G) C) and D)

Question 19

A floating Portuguese man-of-war is

Accepted Answer

A)   a cubozoan.
B)   merely an inflated, noncircular jellyfish.
C)   a free-swimming polyp in the hydra group.
D)   the first animal with complete organ systems.
E)   a colony of polyps composed of different types of individuals.F) A) and B)
G) B) and D)

Question 20

An adaptation exhibited by the tapeworm for survival in a host's intestine is

Accepted Answer

A)   proglottids coated with calcium carbonate.
B)   alkaline secretions from the scolex.
C)   a protective lining of chitin.
D)   eggs before the proglottids are digested.
E)   a tough integument resistant to host digestive fluids.F) A) and D)
G) A) and B)

Exam 31: Animals: the Invertebrates

In flame cells

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How could you possibly become infected with adult tapeworms?

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Which of the following is NOT characteristic of earthworms?

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Which of the following characteristics is NOT true about deuterostomes?

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A sponge actually feeds by

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Which of these parasitic worms is NOT a nematode?

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The segments of a tapeworm consisting primarily of eggs,which hang in bags as a long chain behind the head,are called

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Which of the following statements about hydra morphology is correct?

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An adaptation exhibited by the tapeworm for survival in a host's intestine is

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Planaria feed by

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Which of the following organisms are considered advanced invertebrates with a true coelom?

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The life cycle of animals

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Which of the following is generally NOT a characteristic of all animals?

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A floating Portuguese man-of-war is

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Lophotrochozoa are animals that are organized circularly,so no matter how they are sliced in half longitudinally,mirror images are obtained.

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The term "deuterostome" refers to

Correct AnswerverifiedShow Answer

____ are animals that have three pairs of legs,a tympanum for reception of sound waves,and Malpighian tubules for excretion.

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Which of the following statements is NOT correct about the flatworms?

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Earthworms differ from most of the marine annelids in that earthworms

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The insect organ most equivalent to the human lung in function is the

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