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Invertebrate Zoology > Lecture Exam 1 - MC > Flashcards

Lecture Exam 1 - MC Flashcards

1
Q

Which of the following animals belong to the Phylum Cnidaria, Class Anthozoa?
A. Portugeuse Man O’ War (Physalia physalis)
B. Elkhorn coral (Acropora palmata)
C. Orange Sea Pen (Ptilosarcus gurneyi) seen in lab
D. Both (a) and (b) above
E. Both (b) and (c) above
F. None of the above

A

E

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2
Q

Which of the following animals contain symbiotic algae within their tissues?
A. The upside-down jellyfish (Cassiopea sp.)
B. Green hydra (Hydra viridissima)
C. The giant green anemone (Anthopleura xanthogrammica)
D. The “aggregating anemone” (Anthopleura elegantissima)
E. All of the above

A

E

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3
Q

Which of the following organs within a jellyfish serves to distribute the food to all cells around the body?
A. The blood vessels
B. The gastrovascular cavity
C. The manubrium
D. The Velum
E. The oral arms

A

B,C

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4
Q

Which of the following sponge taxa contain living species at the Ascon grade of construction?
A. Cl. Hexactinellida
B. Cl. Demospongia
C. Cl. Calcarea
D. Both (a) and (b) above
E. Both (b) and (c) above
F. None of the above-all ascon grade are now extinct

A

C

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5
Q

Which traits are found in both Phylum Cnidaria AND Phylum Ctenophora? There can be >1 right answer
A. Nematocysts generally present
B. Extracellular digestion
C. Radial Symmetry
D. Polymorphism
E. No Coelom
F. Clearly diploblastic

A

A,C,E,F

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6
Q

Which of these do not belong to Phylum Cnidaria ,Class Hydrozoa (can have >1 correct answer)?
A. Obelia
B. Tubularia
C. Physalia physalis
D. Turbellaria
E. Hydra
F. Aurelia aurita

A

B

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7
Q

Select the classes of Cnidaria that can have a medusa stage in their lifecycle
A. Hydrozoa
B. Scyphozoa
C. Cubozoa
D. Anthozoa

A

A,B,C

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8
Q

Which phyla are acoelomate? >1 answer might be correct
A. Cnidaria
B. Platyhelminthes
C. Ctenophora
D. Porifera
E. Nemertea

A

A,B,C,D

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9
Q

What structure is used for sensing light or direction in combination with gravity?
A. Nectophore
B. Rhopalium
C. Collenchyme
D. Cilia
E. Statocyst
F. Cnidocyte

A

B

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10
Q
  1. Which of the following is a feature of Class Scyphozoa? (can have >1 correct answer)
    A. Diploblastic
    B. No excretory system
    C. Velum is present
    D. Medusa stage is dominant
    E. possesses a coelom
    F. Bi-radial symmetry
A

C,D,F

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11
Q

Which of the following correctly describes the life cycle of Aurelia?
A. Medusa → Ephyra → Strobila → Planula → Scyphistoma
B. Medusa → Ephyra → Scyphistoma → Planula → Strobila
C. Planula → Scyphistoma → Strobila → Medusa → Ephyra
D. Planula → Scyphistoma → Strobila → Ephyra → Medusa
E. Planula → Stroblia → Scyphistoma → Ephyra → Medusa

A

D

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12
Q
  1. Which of the following Classes within Phylum Cnidaria do not have a medusa stage in their life cycle?
    A. Class Hydrozoa
    B. Class Scyphozoa
    C. Class Cubozoa
    D. Class Anthozoa
    E. Class Staurozoa
A

D

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13
Q
  1. The gas filled polyp in the Portuguese man-o-war, and in some other species in the order Siphonophora, s called a:
    A. Stem
    B. nectosome
    C. pneumatophore
    D. hydrozoa
A

C

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14
Q

Class Staurozoa used to be a part of which class?
A. Cubozoa
B.Scyphozoa
C.Anthozoa
D. Hydrozoa

A

B

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15
Q

Which life stage/form of the fluke Fasicola hepatica develops inside a mollusc?
A. Cercaria
B. Redia
C. Sporocyst
D. Miracidia

A

C

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16
Q

Select the option option that is NOT true about the phylum platyhelminthes.
A. bilateraly symmetry
B. has a closed circulatory system
C. has a ladder-like nervous system
D. Triploblastic

A

B

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17
Q

What do ctenophores use their colloblasts for?
A. Digestion
B. Movement through water
C. Capturing prey
D. Excretion

A

C

18
Q

What is the role of acontia and which class are they associated with?
A. Protection, Anthozoa
B. Protection, Cubozoa
C. Digestion, Ctenophora
D. Protection, Scyphozoa

A

C

19
Q

Which Class in Phylum Cnidaria is the most diverse?
A. Anthozoa
B. Hydrozoa
C. Scyphozoa
D. Ctenophora

A

B

20
Q

Which animal has multiciliated epidermal cells?
A. Turbellarians
B. Sponges
C. Cnidarians
D. Ctenophores

A

D

21
Q

What does the Rhyncocoel develop from?
A. as split in mesoderm
B. the lateral nerve cord
C. the proboscis
D. the dorsal vessel

A

A

22
Q

Which of these are NOT contained in the Mesohyl?(one answer only)
A. spicules
B. pinacocytes
C. amoebocytes
D. spongin

A

B

23
Q
  1. Which of these taxa is/are considered to belong in the phylum Ctenophora? (can be more than one answer)
    A. Tentaculata
    B. Physalia physalis
    C. Cestum veneris
    D. Nuda
    E. Beroe
    F. Madreporaria
A

ACDE

24
Q

What protein are the skeletons of sea pens, sea whips, and sea fans made of?
A. Spongin
B. Gorgonian
C. Spicules
D. Collagen

A

B

25
Q

Which of the following taxa have a closed circulatory system?__________
A) Anthozoa D) Hydrozoa G) Both C and F
B) Polycladida E) Porifera H) Both B and C
C) Nemertea F) Polyplacophora I) Both A and C

A

G

26
Q

Which features (below) are unique to the Phylum Ctenophora?
A) Tentacles D) Colloblasts G) Both C and D
B) Nematocysts E) Bi-radial symmetry H) Both D and E
C) Ctenes F) Both polyp & medusa I) Both C & E

A

G

27
Q

In flat worms, asexual reproduction via budding of new “zooids” at the tail end of the
worm, which are nearly fully formed prior to breaking off, is called______.
A) pedal laceration D) longitudinal fission
B) architomy E) transverse fission
C) conjugation F) paratomy

A

D

28
Q

Which of the following taxa contain species which are colonial and exhibit
polymorphism?
A) Scyphozoa D) All of these (A-C)
B) Hydrozoa E) Both (B) and (C)
C) Anthozoa F) None of these

A

E

29
Q

What feature can be used to distinguish a cubomedusan from a “true” jellyfish?
A) Scyphomedusae reproduce sexually D) Scyphomedusae reproduce asexually
B) Cubomeduase usually lack a velum E) Cubomedusae have lensed eyes
C) Scyphomedusae lack ring canals

A

B

30
Q

Which of the following features do both Ctenophores and Cnidarians share?
A) Extracellular digestion D) Rhabdites
B) Indeterminate development E) Colloblasts
C) Incomplete digestive tract F) Both (A) and (B) above

A

F

31
Q

What is the name of the larval form, found in gastropods, that undergoes torsion?
A) Amphiblastula C) veliger E) Parenchymula
B) Cydippid D) Pilidium F) planula

A

C

32
Q

Which of the following features are found in colonial siphonophores?
A) Individual floats or Pneumatophores, seen in the Portuguese Man O’War
B) Individual feeding polyps or gastrozooids
C) Individual defensive polyps or dactylozooids with stinging cells
D) All of the above are found in siphonophores
E) Both (A) and (B) above, but not (C)

A

D

33
Q

Which of the following features is found in the mesoyl of a sponge?
A) Choanocyte C) Pinacocyte E) None of the above
B) Porocyte D) Archaeocyte

A

D

34
Q

Sponges have evolved from the simplest architectural type, called a ______, through
to the most advanced type/from of architecture, called the _____________.
A) Leucon, Ascon C) Ascon, Sycon E) Sycon, Ascon
B) Sycon, Leucon D) Ascon, Leucon F) Leucon, Sycon

A

D

35
Q

Choanocytes in Leucon grade sponges are found in__________
A) Radial canals C) Ostia E) Oscula
B) Flagellated chambers D) porocytes F) the spongocoel

A

B

36
Q

Which type of cell below is flat and coats the outer surface of a sponge?
A) Choanocyte D) Amebocyte G) Osteocyte
B) Porocytes E) Archeocytes H) Cnidocyte
C) Sclerocyte F) Pinacocyte I) Parenchyma

A

F

37
Q

Which taxa (below) have spicules made of glass?
A) Polycladida D) Demospongiae G) Enopla
B) Hexactinellida E) Calcarea H) Both D and E above
C) Acoela F) All of the above I) Both B & D above

A

B

38
Q

Which of the following cnidarian taxa contain species with either symbiotic
zooxanthellae or zoochlorellae (or both) as symbionts within their tissues?
A) Scyphozoa D) the freshwater genus Hydra
B) Hydrozoa E) hermatypic corals
C) Anthozoa F) All of the above

A

E

39
Q

Which of the following features do both Ctenophores and Cnidarians share?
A) Extracellular digestion D) mesoglea
B) Inner gastrodermis E) Both (B) and (C) above
C) Outer epidermis F) All of the above

A

D

40
Q

Choanocytes in sycon grade sponges are found in__________
A) Radial canals C) Ostia E) Oscula
B) Flagellated chambers D) porocytes F) the spongocoel

A

A

41
Q

Which process below is NOT a type of asexual reproduction found in Anthozoans?
A) Longitudinal fission C) fragmentation E) None of the above
B) Pedal laceration D) Paratomy

A

A

42
Q

Protostomous development and triploblastic larval construction are examples of traits
that are _____________.
A) Synapomorphies for flatworms & cnidarians
B) Analagous traits in flatworms & cnidarians
C) Homologous traits in flatworms & cnidarians
D) Parsimonious traits in flatworms & cnidarians
E) None of the above

A

C

Invertebrate Zoology (4 decks)

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