Question 1

Ectoprocta live in

Accepted Answer

A) only freshwater sediment. 
B) bivalved shells they secrete. 
C) colonies and form protective masses. 
D) secreted tubes in sand or attached to rocks. 
E) echinoderm intestines as parasites. 
A) only freshwater sediment. 
B) bivalved shells they secrete. 
C) colonies and form protective masses. 
D) secreted tubes in sand or attached to rocks. 
E) echinoderm intestines as parasites. C

Question 2

The lophophorate animals that have their bodies covered by a mantle belong to the phylum ________.

Accepted Answer

Brachiopoda

Question 3

Statoblasts are usually formed

Accepted Answer

A) in the winter. 
B) in the spring. 
C) in freshwater ectoprocts. 
D) anytime the pools begin to dry up. 
E) when the colony ages. 
A) in the winter. 
B) in the spring. 
C) in freshwater ectoprocts. 
D) anytime the pools begin to dry up. 
E) when the colony ages. C

Question 4

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 5

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 6

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 7

The _________ is the secreted body wall of an ectoproct,together with its secreted exoskeleton.

Accepted Answer

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

Question 8

The brachiopods live in

Accepted Answer

A) freshwater sediment. 
B) bivalved shells they secrete. 
C) colonies and form protective masses. 
D) secreted tubes in sand or attached to rocks. 
E) echinoderm intestines as parasites. 
A) freshwater sediment. 
B) bivalved shells they secrete. 
C) colonies and form protective masses. 
D) secreted tubes in sand or attached to rocks. 
E) echinoderm intestines as parasites.

Question 9

The formation of the coelom in articulate brachiopods is by _____________ development.

Accepted Answer

The answer of The formation of the coelom in articulate...

Question 10

Brachiopods reproduce and develop

Accepted Answer

A) with separate sexes. 
B) usually with external fertilization. 
C) with radial cleavage. 
D) both with and without metamorphosis. 
E) All of the choices are correct 
A) with separate sexes. 
B) usually with external fertilization. 
C) with radial cleavage. 
D) both with and without metamorphosis. 
E) All of the choices are correct

Question 11

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 12

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

Accepted Answer

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

Question 13

The pedicel of a brachiopod functions

Accepted Answer

A) as a lophophore. 
B) to close the two shells. 
C) as a stalk to attach it to the substrate. 
D) as a respiratory structure. 
E) in reproduction. 
A) as a lophophore. 
B) to close the two shells. 
C) as a stalk to attach it to the substrate. 
D) as a respiratory structure. 
E) in reproduction.

Question 14

Ectoprocta

Accepted Answer

A) live in both marine and freshwater habitats. 
B) form colonies. 
C) resemble cnidarian hydroids. 
D) excludes the entoprocts. 
E) All of these choices are correct 
A) live in both marine and freshwater habitats. 
B) form colonies. 
C) resemble cnidarian hydroids. 
D) excludes the entoprocts. 
E) All of these choices are correct

Question 15

The fleshy stalk of a brachiopod is the ___________.

Accepted Answer

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

Question 16

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 17

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

Question 18

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

Accepted Answer

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

Question 19

"Lamp shells" are not included in Mollusca because they

Accepted Answer

A) clearly do not resemble any mollusk. 
B) lack a hard shell. 
C) have a dorsal-ventral shell and gather food on tentacles. 
D) lack a coelom. 
E) have a fossil record that shows they are totally unrelated. 
A) clearly do not resemble any mollusk. 
B) lack a hard shell. 
C) have a dorsal-ventral shell and gather food on tentacles. 
D) lack a coelom. 
E) have a fossil record that shows they are totally unrelated.

Question 20

Why are entoprocts not included with the ectoprocts since they look nearly identical and were both called bryozoans in earlier times?

Accepted Answer

A) Entoprocts are now known to be cnidarians 
B) Entoprocts are acoelomates and lack sexual reproduction 
C) Entoprocts are all parasites that lost more advanced characters and only secondarily resemble ectoprocts 
D) The fossil record shows they were never related 
E) Entoprocts are pseudocoelomates and have the anus within the tentacular crown 
A) Entoprocts are now known to be cnidarians 
B) Entoprocts are acoelomates and lack sexual reproduction 
C) Entoprocts are all parasites that lost more advanced characters and only secondarily resemble ectoprocts 
D) The fossil record shows they were never related 
E) Entoprocts are pseudocoelomates and have the anus within the tentacular crown

Exam 15: Polyzoa and Kryptrochozoa

Ectoprocta live in

The lophophorate animals that have their bodies covered by a mantle belong to the phylum ________.

Statoblasts are usually formed

Reproduction and development in ectoprocts involves

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

The _________ is the secreted body wall of an ectoproct,together with its secreted exoskeleton.

The brachiopods live in

The formation of the coelom in articulate brachiopods is by _____________ development.

Brachiopods reproduce and develop

The lophophore is

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

The pedicel of a brachiopod functions

Ectoprocta

The fleshy stalk of a brachiopod is the ___________.

The valves of brachiopods are

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

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

"Lamp shells" are not included in Mollusca because they

Why are entoprocts not included with the ectoprocts since they look nearly identical and were both called bryozoans in earlier times?

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

Architectual Pattern of an Animal

Taxonomy and Phylogeny of Animals

Unicellular Eukaryotes

Sponges and Placozoans

Cnidarians and Ctenophores

Acoelomorpha, Platyzoa, and Mesozoa

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Annelids and Allied Taxa

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Amniote Origins and Nonavian Reptiles

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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

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