Question 1

Radula modification allowed all of the following functions in gastropods except

Accepted Answer

A)  scraping algae off rocks.
B)  eating vegetation.
C)  boring holes in other mollusk shells.
D)  protecting themselves with nematocysts.
E)  injecting poison through a harpoon-like structure.F) All of the above
G) C) and E)

Question 2

In many arthropods,body segments have become fused into functional groups called ________.

Accepted Answer

The answer of In many arthropods,body segments have become fused...

Question 3

Each segment of an annelid typically contains bristles of chitin called

Accepted Answer

A)  cilia.
B)  parapodia.
C)  chaetae.
D)  leglets.E) C) and D)
F) All of the above

Question 4

A snail in your garden and an oyster are quite different in appearance.What would be evidence to justify grouping them together?

Accepted Answer

A)  Both use a radula for feeding.
B)  Both have a mantle capable of secreting calcium carbonate.
C)  Both use siphons to obtain oxygen.
D)  Both have sensory antenna.E) A) and D)
F) A) and B)

Question 5

If a hiker picked up a mollusk on a trail in a rain forest,what class would it belong to?

Accepted Answer

A)  Gastropoda
B)  Polyplacophora
C)  Bivalvia
D)  CephalopodaE) A) and D)
F) A) and B)

Question 6

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

Question 7

Inside its beak an octopus has a rasping tongue that is used to tear apart food.Which gastropod structure is this analogous to?

Accepted Answer

A)  Mantle
B)  Shell
C)  Radula
D)  NephridiumE) C) and D)
F) A) and C)

Question 8

Barnacles are sessile filter feeders but unlike bivalves they have internal fertilization.How do they solve this problem?

Accepted Answer

A)  The filter sperm from the water column.
B)  They get fertilized during free living larval stages.
C)  They are only capable of asexual reproduction.
D)  They are hermaphrodites with especially long penises.E) None of the above
F) C) and D)

Question 9

You and your biology lab class take a field trip to a marine aquarium.Your guide is a marine biologist who studies squids.She explains to your class how squids are able to blend into their environment.She points out that squids have pouches of pigments embedded in their epithelium.The pouches are called

Accepted Answer

A)  trochophores.
B)  spermatophores.
C)  lophophores.
D)  chromatophores.
E)  phytophores.F) B) and C)
G) A) and C)

Question 10

The nitrogenous waste in mollusks is removed by

Accepted Answer

A)  flame cells.
B)  nephridia.
C)  Malpighian tubules.
D)  incurrent siphon.
E)  flagella.F) A) and B)
G) A) and C)

Question 11

The lophophore of a brachiopod serves the same function as the ________ in a bivalve.

Accepted Answer

A)  Mantle
B)  Foot
C)  Shell
D)  GillsE) A) and B)
F) A) and C)

Question 12

Examples of mollusks that live on land are the

Accepted Answer

A)  earthworms.
B)  land crabs.
C)  mussels.
D)  scorpions.
E)  snails and slugs.F) B) and E)
G) C) and D)

Question 13

The organ that is responsible for secreting cocoons in the oligochaetes is known as the

Accepted Answer

A)  nephridia.
B)  setae.
C)  radula.
D)  clitellum.
E)  lophophore.F) A) and B)
G) B) and C)

Question 14

Spiders and certain other arthropods which lack jaws or mandibles are placed in a subphylum called

Accepted Answer

A)  Agnathae.
B)  Amandibulata.
C)  blood suckers.
D)  chelicerates.
E)  mandibulates.F) A) and D)
G) B) and E)

Question 15

Turbellarian flatworms have a distinct head.When compared to the head of an insect,what is the flatworm head missing?

Accepted Answer

A)  Sensory organs
B)  light-sensitive structures
C)  Anterior collection of nerve cells
D)  A mouthE) C) and D)
F) B) and D)

Question 16

Brachiopods develop as protostomes,but they show ________ cleavage.

Accepted Answer

The answer of Brachiopods develop as protostomes,but they show ________...

Question 17

In arthropods,locomotion is accomplished by muscles that work against

Accepted Answer

A)  each other.
B)  the exoskeleton.
C)  a hydrostatic skeleton.
D)  mineralized bones.
E)  the pseudocoel.F) A) and C)
G) A) and B)

Question 18

Decapod crustaceans (shrimps,lobsters,and crabs) all lack

Accepted Answer

A)  a carapace,a dorsal cephalothorax shield.
B)  a ventral line of appendages,swimmerets.
C)  a tail spine,telson.
D)  chelicerae.E) B) and C)
F) A) and C)

Question 19

The partitions that separate the segments of the annelid body are known as

Accepted Answer

A)  pseudocoels.
B)  nephridia.
C)  setae.
D)  septa.
E)  radula.F) B) and C)
G) B) and D)

Question 20

In mollusks,the folds of tissue that arise from the dorsal body wall and enclose a cavity surrounding the visceral mass are called the

Accepted Answer

A)  foot.
B)  mantle.
C)  nephridia.
D)  radula.
E)  lophophore.F) C) and E)
G) A) and B)

Exam 33: Protostomes

Examples of mollusks that live on land are the

Correct Answer
verified

In mollusks,the folds of tissue that arise from the dorsal body wall and enclose a cavity surrounding the visceral mass are called the

Correct Answer
verified

Correct Answer
verified

Squids and octopuses move by means of water movement through their

Correct Answer
verified

Each segment of an annelid typically contains bristles of chitin called

Correct Answer
verified

The nitrogenous waste in mollusks is removed by

Correct Answer
verified

Decapod crustaceans (shrimps,lobsters,and crabs) all lack

Correct Answer
verified

The organ that is responsible for secreting cocoons in the oligochaetes is known as the

Correct Answer
verified

Barnacles are sessile filter feeders but unlike bivalves they have internal fertilization.How do they solve this problem?

Correct Answer
verified

Inside its beak an octopus has a rasping tongue that is used to tear apart food.Which gastropod structure is this analogous to?

Correct Answer
verified

A snail in your garden and an oyster are quite different in appearance.What would be evidence to justify grouping them together?

Correct Answer
verified

In many arthropods,body segments have become fused into functional groups called ________.

Correct Answer
verified

In arthropods,locomotion is accomplished by muscles that work against

Correct Answer
verified

The partitions that separate the segments of the annelid body are known as

Correct Answer
verified

Brachiopods develop as protostomes,but they show ________ cleavage.

Correct Answer
verified

If a hiker picked up a mollusk on a trail in a rain forest,what class would it belong to?

Correct Answer
verified

Radula modification allowed all of the following functions in gastropods except

Correct Answer
verified

Turbellarian flatworms have a distinct head.When compared to the head of an insect,what is the flatworm head missing?

Correct Answer
verified

The lophophore of a brachiopod serves the same function as the ________ in a bivalve.

Correct Answer
verified

Spiders and certain other arthropods which lack jaws or mandibles are placed in a subphylum called

Correct Answer
verified

Exam 33: Protostomes

Examples of mollusks that live on land are the

Correct AnswerverifiedShow Answer

In mollusks,the folds of tissue that arise from the dorsal body wall and enclose a cavity surrounding the visceral mass are called the

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Squids and octopuses move by means of water movement through their

Correct AnswerverifiedShow Answer

Each segment of an annelid typically contains bristles of chitin called

Correct AnswerverifiedShow Answer

The nitrogenous waste in mollusks is removed by

Correct AnswerverifiedShow Answer

Decapod crustaceans (shrimps,lobsters,and crabs) all lack

Correct AnswerverifiedShow Answer

The organ that is responsible for secreting cocoons in the oligochaetes is known as the

Correct AnswerverifiedShow Answer

Barnacles are sessile filter feeders but unlike bivalves they have internal fertilization.How do they solve this problem?

Correct AnswerverifiedShow Answer

Inside its beak an octopus has a rasping tongue that is used to tear apart food.Which gastropod structure is this analogous to?

Correct AnswerverifiedShow Answer

A snail in your garden and an oyster are quite different in appearance.What would be evidence to justify grouping them together?

Correct AnswerverifiedShow Answer

In many arthropods,body segments have become fused into functional groups called ________.

Correct AnswerverifiedShow Answer

In arthropods,locomotion is accomplished by muscles that work against

Correct AnswerverifiedShow Answer

The partitions that separate the segments of the annelid body are known as

Correct AnswerverifiedShow Answer

Brachiopods develop as protostomes,but they show ________ cleavage.

Correct AnswerverifiedShow Answer

If a hiker picked up a mollusk on a trail in a rain forest,what class would it belong to?

Correct AnswerverifiedShow Answer

Radula modification allowed all of the following functions in gastropods except

Correct AnswerverifiedShow Answer

Turbellarian flatworms have a distinct head.When compared to the head of an insect,what is the flatworm head missing?

Correct AnswerverifiedShow Answer

The lophophore of a brachiopod serves the same function as the ________ in a bivalve.

Correct AnswerverifiedShow Answer

Spiders and certain other arthropods which lack jaws or mandibles are placed in a subphylum called

Correct AnswerverifiedShow Answer

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