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ZOOLEC > CNIDARIA > Flashcards

CNIDARIA Flashcards

1
Q

knife -
aria -

A

knife - nettle
aria - like or connected with

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2
Q

body plan of cnidaria
a. dimorphic
b. asconoid
c. leuconoid

A

a. dimorphic

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3
Q

sessile, hydroid form
a. polyp
b. medusa

A

a. polyp

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4
Q

free-living, jellyfish form
a. polyp
b. medusa

A

b. medusa

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5
Q

polyps and medusa forms both retain ______ body plan

A

sac -like

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6
Q

medusa is essentially _________ with tubular body widened and flattened into bell shape

A

unattached polyp

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7
Q

tubular body with the mouth directed upward and surrounded by tentacles
a. polyp
b. medusa

A

a. polyp

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8
Q

bell or umbrella shaped and exhibit tetramerous symmetry (arranged in fours)
a. polyp
b. medusa

A

b. medusa

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9
Q

mouth centered on the concave side (subumbrellar region) directed downward into frilly lobes that may extend beneath the bell
a. polyp
b. medusa

A

b. medusa

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10
Q

reproduce asexually by budding, fission, or pedal laceration
a. polyp
b. medusa

A

a. polyp

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11
Q

_______ equipped with statocysts (orientation) and ocelli (light sensors)
a. polyp
b. medusa

A

b. medusa

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12
Q

In polyp, if a bud detaches from the polyp that made it, it forms a _____
a. sibling
b. clone
c. colony

A

b. clone

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13
Q

If a bud remains attached to the polyp that made it, it becomes a ______, with shared gastrovascular cavity
a. sibling
b. clone
c. colony

A

c. colony

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14
Q

unique, found in tentacles
a. sensory cell
b. barb
c. cnidocytes

A

c. cnidocytes

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15
Q

can inject toxins for prey capture or defense
a. cnidocytes
b. operculum
c. nematocyst

A

c. nematocyst

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16
Q

mostly marine, colonial with asexual polyp, and sexual medusa stages as in Obelia sp. (dimorphic)
a. Class Hydrozoa
b. Class Syphozoa
c. Class Staurozoa

A

a. Class Hydrozoa

17
Q

“Cup Animals”
a. Class Hydrozoa
b. Class Syphozoa
c. Class Staurozoa

A

b. Class Syphozoa

18
Q

Lack shelf like velum found in hydrozoan medusae - not an efficient swimmer
a. Class Hydrozoa
b. Class Syphozoa
c. Class Staurozoa

A

b. Class Syphozoa

19
Q

They have no medusa stage and are commonly called stauromedusans
a. Class Hydrozoa
b. Class Syphozoa
c. Class Staurozoa

A

c. Class Staurozoa

20
Q

Solitary polyp body that is stalked; attached to seaweeds and objects on the sea bottom
a. Class Hydrozoa
b. Class Syphozoa
c. Class Staurozoa

A

c. Class Staurozoa

21
Q

base is a rootlike stolon or hydrorhiza
a. Class Hydrozoa
b. Class Syphozoa
c. Class Staurozoa

A

a. Class Hydrozoa

22
Q

Margin of the umbrella has indetations, each bearing a pair of lappets
a. Class Hydrozoa
b. Class Syphozoa
c. Class Staurozoa

A

b. Class Scyphozoa

23
Q

Medusa is the predominant stage
a. Class Cubozoa
b. Class Anthozoa
c. Sea anemone

A

a. Class Cubozoa

24
Q

_______ house of three sets of unique eyes – two type of ocelli and one set of camera type eyes with cornea and lens

A

Rhopalia

25
Q

“Flower animals”
a. Class Cubozoa
b. Class Anthozoa
c. Sea anemone

A

b. Class Anthozoa

26
Q

Most are polyp form and lack a medusa stage
a. Class Cubozoa
b. Class Anthozoa
c. Sea anemone

A

b. Class Anthozoa

27
Q

Umbrella is square and one or more tentacles extend from each corner
a. Class Cubozoa
b. Class Anthozoa
c. Sea anemone

A

a. Class Cubozoa

28
Q

All marine in both deep and shallow water and vary in size
a. Class Cubozoa
b. Class Anthozoa
c. Sea anemone

A

b. Class Anthozoa

29
Q

Multiples of six, also called polymerous symmetry
a. Hexamerous plan
b. Octomerous plan

A

a. Hexamerous plan

30
Q

Octomerous plan has _____ tentacles having _____ featherlike tentacles around the mouth
a. 4
b. 8
c. 12

A

b. 8

31
Q

They provide ventilation and clean up for the anemone while getting shelter and protection
a. dinoflagellates (zooxanthellae)
b. hermit crabs
c. damselfishes

A

c. damselfishes

32
Q

algal photosynthesis
a. dinoflagellates (zooxanthellae)
b. hermit crabs
c. damselfishes

A

a. dinoflagellates (zooxanthellae)

33
Q

free transportation and food scraps from the crab
a. dinoflagellates (zooxanthellae)
b. hermit crabs
c. damselfishes

A

b. hermit crabs

34
Q

radial or bilateral symmetry

A

still debated

ZOOLEC (6 decks)

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