Question 1

Which of the following would NOT be found in the body of a sponge?

Accepted Answer

A) ameboid cells 
B) choanocytes 
C) pinacocytes 
D) spicules 
E) colloblasts 
A) ameboid cells 
B) choanocytes 
C) pinacocytes 
D) spicules 
E) colloblasts E

Question 2

Contractile pinacocytes that can regulate water circulation in some sponges are called

Accepted Answer

A) spongiocytes. 
B) choanocytes. 
C) porocytes. 
D) archeocytes. 
E) amebocytes. 
A) spongiocytes. 
B) choanocytes. 
C) porocytes. 
D) archeocytes. 
E) amebocytes. C

Question 3

The __________ body form of a cnidarian is typically asexual and sessile.

Accepted Answer

A) sycon 
B) polyp 
C) ascon 
D) leucon 
E) medusa 
A) sycon 
B) polyp 
C) ascon 
D) leucon 
E) medusa B

Question 4

Ctenophores move via bands of cilia called

Accepted Answer

A) lappets. 
B) rhopalia. 
C) comb rows. 
D) acontia. 
E) tentacles. 
A) lappets. 
B) rhopalia. 
C) comb rows. 
D) acontia. 
E) tentacles.

Question 5

Gemmules contain masses of __________ which can survive freezing or drying.

Accepted Answer

A) amoeboid cells 
B) porocytes 
C) choanocytes 
D) spongin 
E) pinacocytes 
A) amoeboid cells 
B) porocytes 
C) choanocytes 
D) spongin 
E) pinacocytes

Question 6

Sensory structures located in 8 notches around the bell of jellyfish medusae are

Accepted Answer

A) statoliths. 
B) colloblasts. 
C) manubri. 
D) nematocysts. 
E) rhopalia. 
A) statoliths. 
B) colloblasts. 
C) manubri. 
D) nematocysts. 
E) rhopalia.

Question 7

The taxonomy of sponges is determined by

Accepted Answer

A) the shape of the choanocytes. 
B) the complexity of the osculum. 
C) the material that composes the skeleton. 
D) the presence or absence of porocytes. 
E) the shape of the body of the sponge. 
A) the shape of the choanocytes. 
B) the complexity of the osculum. 
C) the material that composes the skeleton. 
D) the presence or absence of porocytes. 
E) the shape of the body of the sponge.

Question 8

An intracellular structure made of a fluid-filled capsule holding a coiled,hollow tube is the

Accepted Answer

A) cnidocyte. 
B) choanocyate. 
C) cnidocil. 
D) nematocyst. 
E) pinacocyte. 
A) cnidocyte. 
B) choanocyate. 
C) cnidocil. 
D) nematocyst. 
E) pinacocyte.

Question 9

Excretion and gas exchange in sponges are accomplished by

Accepted Answer

A) active transport. 
B) diffusion. 
C) contractile vacuoles. 
D) nephridia. 
E) osmosis. 
A) active transport. 
B) diffusion. 
C) contractile vacuoles. 
D) nephridia. 
E) osmosis.

Question 10

Members of class __________ are those historically used as commercial bath sponges.

Accepted Answer

A) Calcarea 
B) Demospongiae 
C) Hexactinellida 
D) Syconidae 
E) Leuconidae 
A) Calcarea 
B) Demospongiae 
C) Hexactinellida 
D) Syconidae 
E) Leuconidae

Question 11

Sponges may gain nutrition by all of the following modes EXCEPT

Accepted Answer

A) filtration. 
B) trapping of food items by the collar. 
C) active transport of nutrients. 
D) phagocytosis. 
E) active predation. 
A) filtration. 
B) trapping of food items by the collar. 
C) active transport of nutrients. 
D) phagocytosis. 
E) active predation.

Question 12

Freshwater (and some marine)sponges form resistant structures which function in asexual reproduction,called

Accepted Answer

A) brown bodies. 
B) larvae. 
C) statoblasts. 
D) spores. 
E) gemmules. 
A) brown bodies. 
B) larvae. 
C) statoblasts. 
D) spores. 
E) gemmules.

Question 13

The single large opening at the top of the spongocoel is the

Accepted Answer

A) osculum. 
B) atriopore. 
C) ostium. 
D) mouth. 
E) anus. 
A) osculum. 
B) atriopore. 
C) ostium. 
D) mouth. 
E) anus.

Question 14

This group of animals does not possess embryological tissue layers.

Accepted Answer

A) scyphozoans 
B) ctenophorans 
C) poriferans 
D) anthozoans 
E) hydrozoans 
A) scyphozoans 
B) ctenophorans 
C) poriferans 
D) anthozoans 
E) hydrozoans

Question 15

The porocytes of ascon sponges lead to the outside via openings called

Accepted Answer

A) spongocoels. 
B) atriopores. 
C) blastopores. 
D) oscula. 
E) ostia. 
A) spongocoels. 
B) atriopores. 
C) blastopores. 
D) oscula. 
E) ostia.

Question 16

Members of the phylum Ctenophora are commonly called

Accepted Answer

A) jellyfish. 
B) comb jellies. 
C) water bears. 
D) ephyrae. 
E) polyps. 
A) jellyfish. 
B) comb jellies. 
C) water bears. 
D) ephyrae. 
E) polyps.

Question 17

The __________ body form of a cnidarian is typically dioecious and motile.

Accepted Answer

A) sycon 
B) polyp 
C) ascon 
D) leucon 
E) medusa 
A) sycon 
B) polyp 
C) ascon 
D) leucon 
E) medusa

Question 18

Members of the phylum __________ are characterized by radial (or biradial)symmetry,diploblastic organization,a gastrovascular cavity,and cnidocytes.

Accepted Answer

A) Mesozoa 
B) Placozoa 
C) Cnidaria 
D) Porifera 
E) Ctenophora 
A) Mesozoa 
B) Placozoa 
C) Cnidaria 
D) Porifera 
E) Ctenophora

Question 19

The feeding polyps of an Obelia colony are called

Accepted Answer

A) hydranths. 
B) gastrozooids. 
C) gonozooids. 
D) statocysts. 
E) statoblasts. 
A) hydranths. 
B) gastrozooids. 
C) gonozooids. 
D) statocysts. 
E) statoblasts.

Question 20

Which of the following is not a characteristic of animals in the phylum Cnidaria?

Accepted Answer

A) diploblastic, tissue level organization 
B) gastrovascular cavity 
C) nervous system in the form of a nerve net 
D) bilateral symmetry in the adult form 
E) specialized cells called cnidocytes 
A) diploblastic, tissue level organization 
B) gastrovascular cavity 
C) nervous system in the form of a nerve net 
D) bilateral symmetry in the adult form 
E) specialized cells called cnidocytes

Exam 9: Multicellular and Tissue Levels of Organization

Which of the following would NOT be found in the body of a sponge?

Contractile pinacocytes that can regulate water circulation in some sponges are called

The __________ body form of a cnidarian is typically asexual and sessile.

Ctenophores move via bands of cilia called

Gemmules contain masses of __________ which can survive freezing or drying.

Sensory structures located in 8 notches around the bell of jellyfish medusae are

The taxonomy of sponges is determined by

An intracellular structure made of a fluid-filled capsule holding a coiled,hollow tube is the

Excretion and gas exchange in sponges are accomplished by

Members of class __________ are those historically used as commercial bath sponges.

Sponges may gain nutrition by all of the following modes EXCEPT

Freshwater (and some marine)sponges form resistant structures which function in asexual reproduction,called

The single large opening at the top of the spongocoel is the

This group of animals does not possess embryological tissue layers.

The porocytes of ascon sponges lead to the outside via openings called

Members of the phylum Ctenophora are commonly called

The __________ body form of a cnidarian is typically dioecious and motile.

Members of the phylum __________ are characterized by radial (or biradial)symmetry,diploblastic organization,a gastrovascular cavity,and cnidocytes.

The feeding polyps of an Obelia colony are called

Which of the following is not a characteristic of animals in the phylum Cnidaria?

Zoology: an Evolutionary and Ecological Perspective

Cells, tissues, organs, and Organ Systems of Animals

Cell Division and Inheritance

Evolution: History and Evidence

Evolution and Gene Frequencies

Ecology: Preserving the Animal Kingdom

Animal Taxonomy, phylogeny, and Organization

Animal-Like Protists: the Protozoa

The Smaller Lophotrochozoan Phyla

Molluscan Success

Annelida: the Metameric Body Form

The Smaller Ecdysozoan Phyla

The Arthropods: Blueprint for Success

The Pancrustacea: Crustacea and Hexapoda

Ambulacraria: Echinoderms and Hemichordates

Chordata: Urochordata and Cephalochordata

The Fishes: Vertebrate Success in Water

Amphibians: the First Terrestrial Vertebrates

Reptiles: Diapsid Amniotes

Birds: Reptiles by Another Name

Mammals: Synapsid Amniotes

Protection, support, and Movement

Communication I: Nervous and Sensory Systems

Communication II: the Endocrine System and Chemical Messengers

Circulation and Gas Exchange

Nutrition and Digestion

Temperature and Body Fluid Regulation

Reproduction and Development

Filters