Question 1

Sea stars and sea urchins operate their tube feet by

Accepted Answer

A)  a hydraulic system that regulates water pressure.
B)  cilia transporting hemolymph from chamber to chamber.
C)  sticky threads leading from the mouth.
D)  actin and myosin fibers that slide and give muscle actions to the five arms or "rays."
E)  an extensive net of nerve and muscle cells.F) A) and B)
G) A) and C)

Question 2

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) A) and E)
G) A) and D)

Question 3

Which of the following statements about sponges is NOT correct?

Accepted Answer

A)  Sponges have no nerve fibers.
B)  Sponges have no fully developed muscle fibers.
C)  Amoeboid cells capture food particles from the water.
D)  Sponges may reproduce asexually by budding or by regeneration from a small piece.
E)  Cells of a single sponge will recognize others of the same kind and reaggregate if the cells are separated and allowed to reassociate.F) B) and D)
G) A) and B)

Question 4

Which are NOT among the phylum Mollusca?

Accepted Answer

A)  clams
B)  squids
C)  lobsters
D)  nautiluses
E)  snailsF) C) and E)
G) D) and E)

Question 5

Which of these statements is NOT correct about the flatworms?

Accepted Answer

A)  Tapeworms do not have a larval stage.
B)  Planaria ingest food through a mouth located in the head region.
C)  Flukes have two suckers by which they attach to and feed from host tissues.
D)  Tapeworms have a scolex with hooks and suckers by which they attach to the host's intestinal tissues.
E)  Tapeworms enter the human body through undercooked meat,especially pork,which contains encysted larval forms.F) C) and D)
G) A) and B)

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) A) and E)
G) None of the above

Question 7

Sponges exhibit radial symmetry.

Accepted Answer

A) True 
 B)False

Question 8

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) C) and D)
G) B) and D)

Question 9

Which statement about cnidaria is NOT true?

Accepted Answer

A)  Reproduction is both sexual and asexual.
B)  Some forms are sessile and others are motile.
C)  They live in either marine or freshwater environments.
D)  To capture food,the animal wraps itself around its prey.
E)  The body plan is tube-within-a-tube,with both mouth and anus.F) B) and C)
G) A) and D)

Question 10

An insect circulatory system is best described as

Accepted Answer

A)  totally closed like ours,with arteries and veins.
B)  similar to ours,with general closed vessels but no distinct arteries and veins.
C)  an open system that mostly washes hemolymph "blood" through the hemocoel.
D)  totally absent; each body cell manages on its own to gain food and gets rid of wastes.
E)  containing five pairs of "hearts."F) C) and D)
G) A) and C)

Question 11

The two layers of tissue in a hydra are

Accepted Answer

A)  the epidermis,which covers and protects,and the inner layer that contains flame cells.
B)  the epidermis that covers and protects,and the gastrodermis,where cells that complete digestion are found.
C)  the epidermis that contains flame cells and the gastrodermis that contains the nephridia.
D)  the epidermis that covers and protects and the gastrodermis that contains the nephridia.
E)  the epidermis that covers and protects and the gastrodermis that contains a ladder-like nervous system.F) A) and C)
G) All of the above

Question 12

Which of the following is correct in matching the common name with a phylum name?

Accepted Answer

A)  planarian-Nematoda
B)  fluke-Platyhelminthes
C)  coral-Porifera
D)  roundworm-Cnidaria
E)  sponge-ArthropodaF) B) and E)
G) A) and B)

Question 13

The major insect body parts are

Accepted Answer

A)  head,cephalothorax,and abdomen.
B)  cephalothorax,midsection,and abdomen.
C)  head,thorax,and abdomen.
D)  head,pyothorax,and metathorax.
E)  head,cephalothorax,and genitalia.F) A) and B)
G) A) and C)

Question 14

The head region of a tapeworm is called the

Accepted Answer

A)  proglottid.
B)  cercaria.
C)  sporocyst.
D)  scolex.
E)  glycocalyx.F) None of the above
G) D) and E)

Question 15

Planaria move by

Accepted Answer

A)  flame cells.
B)  small pseudopodia.
C)  lateral undulation of muscles.
D)  expulsion of fluids as with squid.
E)  secreting a film of mucus and pushing against it with epidermal cilia.F) B) and C)
G) C) and E)

Question 16

Clams,snails,sea slugs,and octopuses belong to the phylum

Accepted Answer

A)  Annelida.
B)  Mollusca.
C)  Porifera.
D)  Platyhelminthes.
E)  Arthropoda.F) None of the above
G) B) and E)

Question 17

The chitinous bristles that earthworms use to anchor themselves in the earth and pull themselves along are

Accepted Answer

A)  aortic arches.
B)  lateral ventricles.
C)  setae.
D)  parapodia.
E)  nephridia.F) D) and E)
G) C) and D)

Question 18

A closed circulatory system is found in

Accepted Answer

A)  insects.
B)  snails.
C)  clams.
D)  earthworms.
E)  scorpions.F) B) and E)
G) A) and E)

Question 19

Earthworms are

Accepted Answer

A)  annelids.
B)  molluscs.
C)  echinoderms.
D)  platyhelminthes.
E)  arthropods.F) B) and C)
G) A) and C)

Question 20

The madreporite helps the sea star

Accepted Answer

A)  reproduce.
B)  locate food.
C)  digest food and distribute it to the arms.
D)  absorb water to regulate its vascular system.
E)  keep its surface clean of algae and barnacles and debris.F) A) and C)
G) A) and E)

Exam 31: Animals: Part I

Clams,snails,sea slugs,and octopuses belong to the phylum

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The major insect body parts are

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A closed circulatory system is found in

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Which of these statements is NOT correct about the flatworms?

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An insect circulatory system is best described as

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Which are NOT among the phylum Mollusca?

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The chitinous bristles that earthworms use to anchor themselves in the earth and pull themselves along are

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

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The two layers of tissue in a hydra are

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Which of the following statements about hydra morphology is correct?

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Sea stars and sea urchins operate their tube feet by

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The madreporite helps the sea star

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The head region of a tapeworm is called the

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Earthworms are

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Which of the following statements about sponges is NOT correct?

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Which of the following is correct in matching the common name with a phylum name?

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In flame cells

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Sponges exhibit radial symmetry.

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Planaria move by

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Which statement about cnidaria is NOT true?

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