Question 1

An entomologist has been conducting research on the Malpighian tubules of hornets.He is interested in their function.Which of the following statements about Malpighian tubules is not correct?

Accepted Answer

A)  Malpighian tubules empty waste into the hindgut.
B)  Malpighian tubules are slender projections from the digestive system.
C)  Malpighian tubules collect and filter body fluids of some arthropods.
D)  Malpighian tubules are a part of the tracheal system used by some arthropods for respiration.
E)  Malpighian tubules allow for reabsorption of needed salts and water.F) A) and E)
G) A) and C)

Question 2

The most successful class of arthropods is

Accepted Answer

A)  InsectA.
B)  Arachnida.
C)  Crustacea.
D)  Chilopoda.
E)  Merostomata.F) B) and E)
G) D) and E)

Question 3

A biologist has been studying a mollusk that does not have a shell.It lives in the marine environment.Of the examples given below,which one did the biologist study?

Accepted Answer

A)  clam
B)  snail
C)  garden slug
D)  chiton
E)  octopusF) A) and D)
G) A) and E)

Question 4

Choose the letter of the best match from the following:
-Mites

Accepted Answer

A)  Araci
B)  Isoptera
C)  Crustacea
D)  Chilopoda
E)  EctoparasitesF) B) and E)
G) A) and E)

Question 5

Which of the following organs of cephalopods resemble those of the vertebrates?

Accepted Answer

A)  arms
B)  nephridia
C)  eyes
D)  digestive tissues
E)  footF) A) and B)
G) B) and C)

Question 6

Choose the letter of the best match from the following:
-Ticks

Accepted Answer

A)  Araci
B)  Isoptera
C)  Crustacea
D)  Chilopoda
E)  EctoparasitesF) A) and C)
G) B) and C)

Question 7

Choose the letter of the best match from the following:
-Centipedes

Accepted Answer

A)  Araci
B)  Isoptera
C)  Crustacea
D)  Chilopoda
E)  EctoparasitesF) A) and B)
G) A) and C)

Question 8

Choose the letter of the best match from the following:
-Worms with segments,each containing their own circulatory,excretory,and neural elements;three classes,polychaetes,oligochaetes,and hirudinea.

Accepted Answer

A)  lophophorates
B)  gastropods
C)  cephalopods
D)  annelids
E)  leechesF) None of the above
G) B) and C)

Question 9

Squids and octopuses move by means of water movement through their

Accepted Answer

A)  tentacles.
B)  cilia and flagella.
C)  modified mantle cavity.
D)  muscular foot.
E)  radula.F) A) and C)
G) A) and E)

Question 10

The mollusks include all of the following except

Accepted Answer

A)  clams.
B)  oysters.
C)  shrimps.
D)  snails.
E)  squids.F) B) and D)
G) A) and D)

Question 11

In their basic body plan,mollusks have a visceral mass covered with a soft epithelium and a muscular ____ that is used in locomotion.

Accepted Answer

The answer of In their basic body plan,mollusks have a...

Question 12

The rasping tongue,the radula,is present in which molluscan group?

Accepted Answer

A)  bivalve
B)  oyster
C)  clam
D)  snail
E)  scallopsF) A) and E)
G) B) and D)

Question 13

Insects are characterized by all of the following except

Accepted Answer

A)  Malpighian tubules and tracheA.
B)  a nymph developmental stage.
C)  three body sections-head,thorax,and abdomen.
D)  three pairs of legs attached to the thorax,and one pair of antennae.
E)  one or two pairs of wings.F) A) and B)
G) A) and D)

Question 14

Which one of the following incorrectly matches a molluscan structure with its typical function?

Accepted Answer

A)  ctenidia-secretion of the shell (when present) 
B)  visceral mass-houses organs of digestion,excretion,reproduction
C)  foot-locomotion
D)  nephrostome-collection of nitrogenous wastes
E)  radula-feeding organF) B) and E)
G) C) and E)

Question 15

The rigid chitinous exoskeleton of an arthropod has all of the following functions except it

Accepted Answer

A)  provides a place for muscle attachment.
B)  protects the animal from predators.
C)  impedes water loss.
D)  maintains a uniform size for all individuals of that species.
E)  prevents injury to the animal.F) D) and E)
G) None of the above

Question 16

The class Arachnida includes all of the following except

Accepted Answer

A)  dragon flies.
B)  mites.
C)  scorpions.
D)  spiders.
E)  ticks.F) A) and D)
G) B) and E)

Question 17

Which one of the following incorrectly matches a molluscan group with a feature characterizing that group?

Accepted Answer

A)  Gastropoda-torsion
B)  Nudibranchs-extensive gills in mantle cavity
C)  Bivalvia-reduced head and no radula
D)  Polyplacophora-eight calcareous plates
E)  Cephalopoda-closed circulatory systemF) B) and C)
G) A) and C)

Question 18

A marine biologist's research involves the water vascular system of a species of sea star.Which of the following terms would not be used in a description of the water vascular system?

Accepted Answer

A)  madreporite
B)  ring canal
C)  ampulla
D)  tube foot
E)  pedicellariaeF) B) and D)
G) A) and E)

Question 19

Air passage into the trachea of most insects is controlled by the closing and opening of valves,which operate special openings called

Accepted Answer

A)  spiracles.
B)  ocelli.
C)  ommatidia.
D)  book lungs.
E)  Malpighian tubules.F) A) and D)
G) A) and C)

Question 20

Which choice is correct for the movement of water through the water vascular system of a sea star?

Accepted Answer

A)  madreporite  →\rarr→  stone canal  →\rarr→  lateral canal  →\rarr→ ring canal  →\rarr→  radial canal  →\rarr→  tube foot
B)  madreporite  →\rarr→  lateral canal  →\rarr→  ring canal  →\rarr→  radial canal  →\rarr→  stone canal  →\rarr→  tube foot
C)  madreporite  →\rarr→  stone canal  →\rarr→  ring canal  →\rarr→  lateral canal  →\rarr→  radial canal  →\rarr→  tube foot
D)  madreporite  →\rarr→  stone canal  →\rarr→  ring canal  →\rarr→  radial canal  →\rarr→  tube foot
E)  madreporite →\rarr→  stone canal  →\rarr→  radial canal  →\rarr→  ring canal  →\rarr→ tube foot F) B) and E)
G) C) and D)

Exam 34: Coelomate Invertebrates

Which choice is correct for the movement of water through the water vascular system of a sea star?

Correct AnswerverifiedShow Answer

Air passage into the trachea of most insects is controlled by the closing and opening of valves,which operate special openings called

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Choose the letter of the best match from the following: -Ticks

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The class Arachnida includes all of the following except

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The rasping tongue,the radula,is present in which molluscan group?

Correct AnswerverifiedShow Answer

The rigid chitinous exoskeleton of an arthropod has all of the following functions except it

Correct AnswerverifiedShow Answer

The most successful class of arthropods is

Correct AnswerverifiedShow Answer

The mollusks include all of the following except

Correct AnswerverifiedShow Answer

A marine biologist's research involves the water vascular system of a species of sea star.Which of the following terms would not be used in a description of the water vascular system?

Correct AnswerverifiedShow Answer

Choose the letter of the best match from the following: -Worms with segments,each containing their own circulatory,excretory,and neural elements;three classes,polychaetes,oligochaetes,and hirudinea.

Correct AnswerverifiedShow Answer

An entomologist has been conducting research on the Malpighian tubules of hornets.He is interested in their function.Which of the following statements about Malpighian tubules is not correct?

Correct AnswerverifiedShow Answer

Squids and octopuses move by means of water movement through their

Correct AnswerverifiedShow Answer

Which of the following organs of cephalopods resemble those of the vertebrates?

Correct AnswerverifiedShow Answer

In their basic body plan,mollusks have a visceral mass covered with a soft epithelium and a muscular ____ that is used in locomotion.

Correct AnswerverifiedShow Answer

A biologist has been studying a mollusk that does not have a shell.It lives in the marine environment.Of the examples given below,which one did the biologist study?

Correct AnswerverifiedShow Answer

Insects are characterized by all of the following except

Correct AnswerverifiedShow Answer

Which one of the following incorrectly matches a molluscan group with a feature characterizing that group?

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Choose the letter of the best match from the following: -Centipedes

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Which one of the following incorrectly matches a molluscan structure with its typical function?

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Choose the letter of the best match from the following: -Mites

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