Question 1

The larval stages of all three lophophorate phyla are

Accepted Answer

A)  also sessile, having budded off from the parent. 
B)  parasitic on other animals. 
C)  trochophores. 
D)  bilateral planula larvae. 
E)  free-swimming. 
A)  also sessile, having budded off from the parent. 
B)  parasitic on other animals. 
C)  trochophores. 
D)  bilateral planula larvae. 
E)  free-swimming.

Question 2

The chamber in which each zooid of an ectoproct colony lives is called a ________________.

Accepted Answer

The answer of The chamber in which each zooid of...

Question 3

The larva of phoronids is called the _____________.

Accepted Answer

The answer of The larva of phoronids is called the...

Question 4

Entoprocts

Accepted Answer

A)  are mostly freshwater. 
B)  are wormlike. 
C)  have an incomplete digestive tract. 
D)  have a crown of ciliated tentacles. 
E)  are a major disease agent. 
A)  are mostly freshwater. 
B)  are wormlike. 
C)  have an incomplete digestive tract. 
D)  have a crown of ciliated tentacles. 
E)  are a major disease agent.

Question 5

Resistant capsules containing germinative cells formed by freshwater ectoprocts are _____________.

Accepted Answer

The answer of Resistant capsules containing germinative cells formed by...

Question 6

Explain why the Brachiopoda are not included with the phylum Mollusca,class Bivalvia since they do have a mantle that secretes two shells.

Accepted Answer

Brachiopoda, commonly known as lamp shel

Question 7

The respiratory system of an ectoproct involves

Accepted Answer

A)  tracheae. 
B)  gills that form another layer under the tentacles. 
C)  amebocytes loaded with hemoglobin pigment. 
D)  circulation of water by opening and closing the epistome. 
E)  no system at all, merely diffusion across the body surface. 
A)  tracheae. 
B)  gills that form another layer under the tentacles. 
C)  amebocytes loaded with hemoglobin pigment. 
D)  circulation of water by opening and closing the epistome. 
E)  no system at all, merely diffusion across the body surface.

Question 8

Reproduction and development in ectoprocts involves

Accepted Answer

A)  hermaphrodites. 
B)  radial cleavage. 
C)  brooding of eggs inside the coelom or in special ovicells. 
D)  metamorphosis to the adult form. 
E)  All of the choices are correct 
A)  hermaphrodites. 
B)  radial cleavage. 
C)  brooding of eggs inside the coelom or in special ovicells. 
D)  metamorphosis to the adult form. 
E)  All of the choices are correct

Question 9

Which group is so specialized that they are only found on the mouthparts of marine decapods in the northern hemisphere?

Accepted Answer

A)  micrognathozoans. 
B)  rotifers. 
C)  cycliophorans. 
D)  acanthocephalans. 
E)  entoprocts. 
A)  micrognathozoans. 
B)  rotifers. 
C)  cycliophorans. 
D)  acanthocephalans. 
E)  entoprocts.

Question 10

The lophophorate phyla are grouped together because

Accepted Answer

A)  they all belong to the deuterostome branch of the bilateral animals. 
B)  they all possess a specialized crown of tentacles specialized for sedentary filter feeding. 
C)  they all lack a true coelom. 
D)  all appear to be derived from the Entoprocta ancestors. 
E)  they simply do not fit anywhere else. 
A)  they all belong to the deuterostome branch of the bilateral animals. 
B)  they all possess a specialized crown of tentacles specialized for sedentary filter feeding. 
C)  they all lack a true coelom. 
D)  all appear to be derived from the Entoprocta ancestors. 
E)  they simply do not fit anywhere else.

Question 11

Reproduction and development in phoronid worms involves

Accepted Answer

A)  monoecious species. 
B)  dioecious species. 
C)  asexual species. 
D)  a radial cleavage pattern. 
E)  All of the choices are correct 
A)  monoecious species. 
B)  dioecious species. 
C)  asexual species. 
D)  a radial cleavage pattern. 
E)  All of the choices are correct

Question 12

Ectoproct colonies have modified zooids to

Accepted Answer

A)  assist in reproduction. 
B)  disperse the colony. 
C)  secrete more exoskeleton. 
D)  protect the colony and sweep away foreign particles. 
E)  All of the choices are zooid specializations 
A)  assist in reproduction. 
B)  disperse the colony. 
C)  secrete more exoskeleton. 
D)  protect the colony and sweep away foreign particles. 
E)  All of the choices are zooid specializations

Question 13

Phoronid worms

Accepted Answer

A)  Are relatively large and usually over 30 cm in length 
B)  Are tube-dwelling marine animals 
C)  Are most common in deep tropical oceans near thermal vents 
D)  Spend a lot of time scavenging across the sea floor 
E)  Are a serious threat to oyster beds 
A)  Are relatively large and usually over 30 cm in length 
B)  Are tube-dwelling marine animals 
C)  Are most common in deep tropical oceans near thermal vents 
D)  Spend a lot of time scavenging across the sea floor 
E)  Are a serious threat to oyster beds

Question 14

The digestive system of a phoronid worm has

Accepted Answer

A)  cilia in the stomach area of the U-shaped gut. 
B)  water passing over the anus and nephridiopores before entering the gut. 
C)  an anus that lies ventral to the mouth and inside the lophophore. 
D)  All of the choices are correct 
E)  None of the choices are correct 
A)  cilia in the stomach area of the U-shaped gut. 
B)  water passing over the anus and nephridiopores before entering the gut. 
C)  an anus that lies ventral to the mouth and inside the lophophore. 
D)  All of the choices are correct 
E)  None of the choices are correct

Question 15

The lophophore contains an extension of the

Accepted Answer

A)  protocoel. 
B)  metacoel. 
C)  mesocoel. 
D)  pseudocoel. 
E)  None of the choices are correct 
A)  protocoel. 
B)  metacoel. 
C)  mesocoel. 
D)  pseudocoel. 
E)  None of the choices are correct

Question 16

The three lophophorate phyla are Phoronida,Ectoprocta,and _________________.

Accepted Answer

The answer of The three lophophorate phyla are Phoronida,Ectoprocta,and _________________....

Question 17

The fleshy stalk of a brachiopod is the ___________.

Accepted Answer

The answer of The fleshy stalk of a brachiopod is...

Question 18

The valves of brachiopods are

Accepted Answer

A)  secreted by the mantle. 
B)  dorsal and ventral. 
C)  hinged in some with a tooth-and-socket arrangement. 
D)  All of the choices are correct 
A)  secreted by the mantle. 
B)  dorsal and ventral. 
C)  hinged in some with a tooth-and-socket arrangement. 
D)  All of the choices are correct

Question 19

The lophophore is

Accepted Answer

A)  an arrangement of ciliated tentacles. 
B)  an efficient feeding device. 
C)  extended from a ridge that surrounds the mouth but not the anus. 
D)  a respiratory surface for the exchange of gases. 
E)  All of the choices are correct 
A)  an arrangement of ciliated tentacles. 
B)  an efficient feeding device. 
C)  extended from a ridge that surrounds the mouth but not the anus. 
D)  a respiratory surface for the exchange of gases. 
E)  All of the choices are correct

Question 20

The ________ includes the lophophore,digestive tract,muscles,and nerve centers.

Accepted Answer

A)  Adhesive sac 
B)  Statoblast 
C)  Cystid 
D)  Polypide 
E)  Zoecium 
A)  Adhesive sac 
B)  Statoblast 
C)  Cystid 
D)  Polypide 
E)  Zoecium

Exam 15: Polyzoa and Kryptrochozoa

The larval stages of all three lophophorate phyla are

The chamber in which each zooid of an ectoproct colony lives is called a ________________.

The larva of phoronids is called the _____________.

Entoprocts

Resistant capsules containing germinative cells formed by freshwater ectoprocts are _____________.

Explain why the Brachiopoda are not included with the phylum Mollusca,class Bivalvia since they do have a mantle that secretes two shells.

The respiratory system of an ectoproct involves

Reproduction and development in ectoprocts involves

Which group is so specialized that they are only found on the mouthparts of marine decapods in the northern hemisphere?

The lophophorate phyla are grouped together because

Reproduction and development in phoronid worms involves

Ectoproct colonies have modified zooids to

Phoronid worms

The digestive system of a phoronid worm has

The lophophore contains an extension of the

The three lophophorate phyla are Phoronida,Ectoprocta,and _________________.

The fleshy stalk of a brachiopod is the ___________.

The valves of brachiopods are

The lophophore is

The ________ includes the lophophore,digestive tract,muscles,and nerve centers.

Life: Biological Principles and the Science of Zoology

The Origin and Chemistry of Life

Cells As Units of Life

Cellular Metabolism

Genetics: a Review

Organic Evolution

The Reproductive Process

Principles of Development

Architectural Pattern of an Animal

Taxonomy and Phylogeny of Animals

Unicellular Eukaryotes

Sponges and Placozoans

Radiate Animals

Acoelomorpha,Platyzoa,and Mesozoa

Molluscs

Annelids and Allied Taxa

Smaller Ecdysozoans

Trilobites, Chelicerates, and Myriapods

Crustaceans

Support, Protection, and Movement

Chaetognaths, Echinoderms, and Hemichordates

Chordates

Fishes

Early Tetrapods and Modern Amphibians

Amniote Origins and Nonavian Reptiles

Birds

Mammals

Support, protection, and Movement

Homeostasis: Osmotic Regulation, Excretion, and Temperature Regulation

Homeostasis: Internal Fluids and Respiration

Digestion and Nutrition

Nervous Coordination: Nervous System and Sense Organs

Chemical Coordination: Endocrine System

Immunity

Animal Behavior

Animal Distributions

Animal Ecology

Filters