Question 1

An example of an invertebrate chordate belongs in the subphylum:

Accepted Answer

A)  Vertebrata. 
B)  Urochordata. 
C)  Chelicerata. 
D)  Crustacea. 
E)  Pycnogonida. 
A)  Vertebrata. 
B)  Urochordata. 
C)  Chelicerata. 
D)  Crustacea. 
E)  Pycnogonida.

Question 2

Nudibranchs belong to the class ____ of the phylum Mollusca.

Accepted Answer

A)  Gastropoda 
B)  Cephalopoda 
C)  Bivalvia 
D)  Polyplacophora 
E)  Pulmonata 
A)  Gastropoda 
B)  Cephalopoda 
C)  Bivalvia 
D)  Polyplacophora 
E)  Pulmonata

Question 3

The tunic of tunicates is composed of:

Accepted Answer

A)  a cellulose-like substance. 
B)  chitin. 
C)  silica. 
D)  calcium carbonate. 
E)  starch. 
A)  a cellulose-like substance. 
B)  chitin. 
C)  silica. 
D)  calcium carbonate. 
E)  starch.

Question 4

Match the class with its most closely associated habitat.
-Barnacles

Accepted Answer

A) Sessile on solid substrate 
B) Sand beaches 
C) Pelagic 
A) Sessile on solid substrate 
B) Sand beaches 
C) Pelagic

Question 5

Brittle stars are members of the class ____ of the phylum Echinodermata.

Accepted Answer

A)  Asteroidea 
B)  Ophiuroidea 
C)  Echinoidea 
D)  Holothuroidea 
E)  Crinoidea. 
A)  Asteroidea 
B)  Ophiuroidea 
C)  Echinoidea 
D)  Holothuroidea 
E)  Crinoidea.

Question 6

The odontophore of molluscs is part of the:

Accepted Answer

A)  digestive system. 
B)  nervous system. 
C)  excretory system. 
D)  defense system. 
E)  reproductive system. 
A)  digestive system. 
B)  nervous system. 
C)  excretory system. 
D)  defense system. 
E)  reproductive system.

Question 7

Describe 3 anatomical features that distinguish a bivalve from the phylum Mollusca from a brachiopod.

Accepted Answer

Even though both bivalves and brachiopod

Question 8

A pile of castings outside the burrow of a polychaete indicates it

Accepted Answer

A)  has just dug a burrow. 
B)  has completed a meal of other worms. 
C)  is a filter feeder. 
D)  is a selective deposit feeder. 
E)  is a nonselective deposit feeder. 
A)  has just dug a burrow. 
B)  has completed a meal of other worms. 
C)  is a filter feeder. 
D)  is a selective deposit feeder. 
E)  is a nonselective deposit feeder.

Question 9

Animals covered by eight overlapping shells on their dorsal surface are

Accepted Answer

A)  chitons. 
B)  octopuses. 
C)  shrimp. 
D)  crabs. 
E)  lobsters. 
A)  chitons. 
B)  octopuses. 
C)  shrimp. 
D)  crabs. 
E)  lobsters.

Question 10

Arroworms seize their prey with:

Accepted Answer

A)  tetrodotoxin. 
B)  stinging cells. 
C)  engulfing with their mouth. 
D)  oral tentacles. 
E)  grasping spines. 
A)  tetrodotoxin. 
B)  stinging cells. 
C)  engulfing with their mouth. 
D)  oral tentacles. 
E)  grasping spines.

Question 11

The role of arroworms in the pelagic ecosystem is to:

Accepted Answer

A)  filter feed on small plankton. 
B)  link primary and higher consumers in the food chain. 
C)  prevent grazers from population explosions. 
D)  scavenge nutrition from dying animals. 
E)  recycle nutrients from detritus. 
A)  filter feed on small plankton. 
B)  link primary and higher consumers in the food chain. 
C)  prevent grazers from population explosions. 
D)  scavenge nutrition from dying animals. 
E)  recycle nutrients from detritus.

Question 12

Match the molluscan class with its most closely associated characteristic.
-Bivalvia

Accepted Answer

A) eight plates 
B) head foot 
C) stomach foot 
D) gills strain seawater to collect plankton 
A) eight plates 
B) head foot 
C) stomach foot 
D) gills strain seawater to collect plankton

Question 13

Match the characteristic of the coleoid group with the group.
-Octopus

Accepted Answer

A) eight arms 
B) ten arms in five pairs 
C) small internal shell 
D) large external shell 
A) eight arms 
B) ten arms in five pairs 
C) small internal shell 
D) large external shell

Question 14

The visceral mass of molluscs does not contain the

Accepted Answer

A)  circulatory system. 
B)  excretory system. 
C)  nervous system. 
D)  head-foot. 
E)  digestive system. 
A)  circulatory system. 
B)  excretory system. 
C)  nervous system. 
D)  head-foot. 
E)  digestive system.

Question 15

Spiny bristles used for locomotion that emanate from the segments of annelids are called:

Accepted Answer

A)  pharynx. 
B)  parapodia. 
C)  epitokes. 
D)  setae. 
E)  prostomia. 
A)  pharynx. 
B)  parapodia. 
C)  epitokes. 
D)  setae. 
E)  prostomia.

Question 16

Match the phylum with the distinguishing feature.
-Echinodermata

Accepted Answer

A) Transparent, torpedo-shaped body 
B) Water-vascular system 
C) Post-anal tail 
A) Transparent, torpedo-shaped body 
B) Water-vascular system 
C) Post-anal tail

Question 17

____ can dominate the zooplankton community of temperate waters.

Accepted Answer

A)  Copepods 
B)  Amphipods 
C)  Barnacles 
D)  Shrimp 
E)  Heteropods 
A)  Copepods 
B)  Amphipods 
C)  Barnacles 
D)  Shrimp 
E)  Heteropods

Question 18

Molluscs that live in a tusk-like shell that is open at both ends belong to the class:

Accepted Answer

A)  Polyplacophora. 
B)  Scaphopoda. 
C)  Cephalopoda. 
D)  Gastropoda. 
E)  Bivalvia. 
A)  Polyplacophora. 
B)  Scaphopoda. 
C)  Cephalopoda. 
D)  Gastropoda. 
E)  Bivalvia.

Question 19

Which of the following is not a decapod?

Accepted Answer

A)  shrimp 
B)  lobster 
C)  crab 
D)  krill 
A)  shrimp 
B)  lobster 
C)  crab 
D)  krill

Question 20

MATCHING
Match the phylum with the distinguishing features.
-Arthropoda

Accepted Answer

A) Exoskelton, jointed legs 
B) Foot, mantle 
C) Lancelets 
A) Exoskelton, jointed legs 
B) Foot, mantle 
C) Lancelets

An example of an invertebrate chordate belongs in the subphylum:

Nudibranchs belong to the class ____ of the phylum Mollusca.

The tunic of tunicates is composed of:

Match the class with its most closely associated habitat. -Barnacles

Brittle stars are members of the class ____ of the phylum Echinodermata.

The odontophore of molluscs is part of the:

Describe 3 anatomical features that distinguish a bivalve from the phylum Mollusca from a brachiopod.

A pile of castings outside the burrow of a polychaete indicates it

Animals covered by eight overlapping shells on their dorsal surface are

Arroworms seize their prey with:

The role of arroworms in the pelagic ecosystem is to:

Match the molluscan class with its most closely associated characteristic. -Bivalvia

Match the characteristic of the coleoid group with the group. -Octopus

The visceral mass of molluscs does not contain the

Spiny bristles used for locomotion that emanate from the segments of annelids are called:

Match the phylum with the distinguishing feature. -Echinodermata

____ can dominate the zooplankton community of temperate waters.

Molluscs that live in a tusk-like shell that is open at both ends belong to the class:

Which of the following is not a decapod?

MATCHING Match the phylum with the distinguishing features. -Arthropoda

Science and Marine Biology

Fundamentals of Ecology

Geology of the Ocean

Water, Waves, and Tides

Biological Concepts

Marine Microbes

Multicellular Primary Producers

Lower Invertebrates

Marine Fishes

Reptiles and Birds

Marine Mammals

Intertidal Communities

Estuaries

Coral Reef Communities

Continental Shelves and Neritic Zone

The Open Sea

Life in the Oceans Depths

Harvesting the Oceans Resources

Oceans in Jeopardy

Filters

Exam 9: Higher Invertebrates

An example of an invertebrate chordate belongs in the subphylum:

Nudibranchs belong to the class ____ of the phylum Mollusca.

The tunic of tunicates is composed of:

Match the class with its most closely associated habitat. -Barnacles

Brittle stars are members of the class ____ of the phylum Echinodermata.

The odontophore of molluscs is part of the:

Describe 3 anatomical features that distinguish a bivalve from the phylum Mollusca from a brachiopod.

A pile of castings outside the burrow of a polychaete indicates it

Animals covered by eight overlapping shells on their dorsal surface are

Arroworms seize their prey with:

The role of arroworms in the pelagic ecosystem is to:

Match the molluscan class with its most closely associated characteristic. -Bivalvia

Match the characteristic of the coleoid group with the group. -Octopus

The visceral mass of molluscs does not contain the

Spiny bristles used for locomotion that emanate from the segments of annelids are called:

Match the phylum with the distinguishing feature. -Echinodermata

____ can dominate the zooplankton community of temperate waters.

Molluscs that live in a tusk-like shell that is open at both ends belong to the class:

Which of the following is not a decapod?

MATCHING Match the phylum with the distinguishing features. -Arthropoda

Science and Marine Biology

Fundamentals of Ecology

Geology of the Ocean

Water, Waves, and Tides

Biological Concepts

Marine Microbes

Multicellular Primary Producers

Lower Invertebrates

Marine Fishes

Reptiles and Birds

Marine Mammals

Intertidal Communities

Estuaries

Coral Reef Communities

Continental Shelves and Neritic Zone

The Open Sea

Life in the Oceans Depths

Harvesting the Oceans Resources

Oceans in Jeopardy

Filters