Question 1

Water exits the sponge spongocoel through the:

Accepted Answer

A)  choanocytes. 
B)  spicules. 
C)  ostia. 
D)  osculum. 
E)  pinocytes 
A)  choanocytes. 
B)  spicules. 
C)  ostia. 
D)  osculum. 
E)  pinocytes

Question 2

The feeding biology of sponges is referred to as:

Accepted Answer

A)  grazing. 
B)  filter feeding. 
C)  carnivory. 
D)  deposit feeding. 
E)  omnivory 
A)  grazing. 
B)  filter feeding. 
C)  carnivory. 
D)  deposit feeding. 
E)  omnivory

Question 3

Collar cells of sponges function in moving water through the sponge's body.

Accepted Answer

A) True 
 B)False

Question 4

A sponge body type consisting of one spongocoel having many folds is called:

Accepted Answer

A)  asconoid. 
B)  syconoid. 
C)  leuconoid. 
D)  hexactinellida. 
E)  demospongoid. 
A)  asconoid. 
B)  syconoid. 
C)  leuconoid. 
D)  hexactinellida. 
E)  demospongoid.

Question 5

What characteristics of sponges allow sexual reproduction by fragmentation?

Accepted Answer

Sponges, unlike many other ani

Question 6

Cnidarians have ____ symmetry.

Accepted Answer

A)  radial. 
B)  asymmetric. 
C)  bilateral. 
D)  dorsal-ventral. 
E)  pentamerous 
A)  radial. 
B)  asymmetric. 
C)  bilateral. 
D)  dorsal-ventral. 
E)  pentamerous

Question 7

Sponges belong to the phylum:

Accepted Answer

A)  Porifera. 
B)  Cnidaria. 
C)  Platyhelminthes. 
D)  Nematoda. 
E)  Tubularia. 
A)  Porifera. 
B)  Cnidaria. 
C)  Platyhelminthes. 
D)  Nematoda. 
E)  Tubularia.

Question 8

Sponges live a(n) ____ lifestyle.

Accepted Answer

A)  planktonic. 
B)  infaunal. 
C)  nektonic. 
D)  sessile. 
E)  neustonic 
A)  planktonic. 
B)  infaunal. 
C)  nektonic. 
D)  sessile. 
E)  neustonic

Question 9

Which of the following is not a member of the phylum Platyhelminthes?

Accepted Answer

A)  fluke 
B)  tapeworm 
C)  flatworm 
D)  ribbon worm 
A)  fluke 
B)  tapeworm 
C)  flatworm 
D)  ribbon worm

Question 10

Match the life stage with its most closely associated feature.
-Medusa

Accepted Answer

A) Attached form 
B) Larval form 
C) Free floating larval and adult form 
A) Attached form 
B) Larval form 
C) Free floating larval and adult form

Question 11

The type of feeding in sponges classifies them as:

Accepted Answer

A)  grazers. 
B)  scrapers. 
C)  graspers. 
D)  filter-feeders. 
E)  omnivores. 
A)  grazers. 
B)  scrapers. 
C)  graspers. 
D)  filter-feeders. 
E)  omnivores.

Question 12

Sponges are considered:

Accepted Answer

A)  animals. 
B)  plants. 
C)  fungi. 
D)  bacteria. 
E)  Archaea. 
A)  animals. 
B)  plants. 
C)  fungi. 
D)  bacteria. 
E)  Archaea.

Question 13

Ribbon worms use their ____ for capturing prey.

Accepted Answer

A)  epitoke 
B)  proboscis 
C)  pharynx 
D)  lophophore 
E)  choanocytes 
A)  epitoke 
B)  proboscis 
C)  pharynx 
D)  lophophore 
E)  choanocytes

Question 14

What are the advantages of radial symmetry to a sessile or slow moving organism?

Accepted Answer

Since sessile organisms do not move, it

Question 15

Water enters the spongocoel through the osculum.

Accepted Answer

A) True 
 B)False

Question 16

Match the words with the animals they are most closely associated with.
-Porifera

Accepted Answer

A) Cilia for locomotion 
B) Collar cells 
C) Stinging cells 
A) Cilia for locomotion 
B) Collar cells 
C) Stinging cells

Question 17

The skeletal elements that give support to a sponge's body are called

Accepted Answer

A)  choanocytes. 
B)  spongin. 
C)  spicules. 
D)  collar cells. 
E)  porocytes. 
A)  choanocytes. 
B)  spongin. 
C)  spicules. 
D)  collar cells. 
E)  porocytes.

Question 18

Sponges can have skeletons made of all these materials except:

Accepted Answer

A)  silica. 
B)  calcium carbonate. 
C)  starch. 
D)  spongin. 
E)  protein. 
A)  silica. 
B)  calcium carbonate. 
C)  starch. 
D)  spongin. 
E)  protein.

Question 19

The flatworms have ____ symmetry.

Accepted Answer

A)  radial. 
B)  asymmetric. 
C)  bilateral. 
D)  spherical. 
E)  pentamerous. 
A)  radial. 
B)  asymmetric. 
C)  bilateral. 
D)  spherical. 
E)  pentamerous.

Question 20

Both cnidarians and ctenophores manufacture their own nematocysts for capturing prey.

Accepted Answer

A) True 
 B)False

Water exits the sponge spongocoel through the:

The feeding biology of sponges is referred to as:

Collar cells of sponges function in moving water through the sponge's body.

A sponge body type consisting of one spongocoel having many folds is called:

What characteristics of sponges allow sexual reproduction by fragmentation?

Cnidarians have ____ symmetry.

Sponges belong to the phylum:

Sponges live a(n) ____ lifestyle.

Which of the following is not a member of the phylum Platyhelminthes?

Match the life stage with its most closely associated feature. -Medusa

The type of feeding in sponges classifies them as:

Sponges are considered:

Ribbon worms use their ____ for capturing prey.

What are the advantages of radial symmetry to a sessile or slow moving organism?

Water enters the spongocoel through the osculum.

Match the words with the animals they are most closely associated with. -Porifera

The skeletal elements that give support to a sponge's body are called

Sponges can have skeletons made of all these materials except:

The flatworms have ____ symmetry.

Both cnidarians and ctenophores manufacture their own nematocysts for capturing prey.

Science and Marine Biology

Fundamentals of Ecology

Geology of the Ocean

Water, Waves, and Tides

Biological Concepts

Marine Microbes

Multicellular Primary Producers

Higher 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

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Exam 8: Lower Invertebrates

Water exits the sponge spongocoel through the:

The feeding biology of sponges is referred to as:

Collar cells of sponges function in moving water through the sponge's body.

A sponge body type consisting of one spongocoel having many folds is called:

What characteristics of sponges allow sexual reproduction by fragmentation?

Cnidarians have ____ symmetry.

Sponges belong to the phylum:

Sponges live a(n) ____ lifestyle.

Which of the following is not a member of the phylum Platyhelminthes?

Match the life stage with its most closely associated feature. -Medusa

The type of feeding in sponges classifies them as:

Sponges are considered:

Ribbon worms use their ____ for capturing prey.

What are the advantages of radial symmetry to a sessile or slow moving organism?

Water enters the spongocoel through the osculum.

Match the words with the animals they are most closely associated with. -Porifera

The skeletal elements that give support to a sponge's body are called

Sponges can have skeletons made of all these materials except:

The flatworms have ____ symmetry.

Both cnidarians and ctenophores manufacture their own nematocysts for capturing prey.

Science and Marine Biology

Fundamentals of Ecology

Geology of the Ocean

Water, Waves, and Tides

Biological Concepts

Marine Microbes

Multicellular Primary Producers

Higher 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