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ZOO 116 > CNIDARIA AND CTENOPHORA > Flashcards

CNIDARIA AND CTENOPHORA Flashcards

1
Q

Cnidarians exist as

A

Solitary or medusoid

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2
Q

Medusoid means

A

Free floating individual

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3
Q

Ceoli and statocyst are the… Of cnidarians

A

Sensory cells

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4
Q

Gomozoid are responsible for ……. Through …..

A

Asexual reproduction, budding

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5
Q

Datinozoids are

A

Defensive

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6
Q

In obelia, there can be …… Types of zoid

A

3

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7
Q

Anthozoa exist in…..

A

Colonies

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8
Q

In polypoids, mouth faces

A

Upwards

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9
Q

Classes ofcnidaria are

A

Hydrozoa, anthozoa, scyphozoa and cubozoa

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10
Q

……. Is an example of hydrozoa

A

Hydra

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11
Q

In medusoid form of hydrozoa, the mouth is always at the end of a very long

A

Manubrium

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12
Q

Physalia has …. which could be deadly

A

Stinging cells

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13
Q

Cubozoa are …… And called.. …

A

Box-like , boxjelly

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14
Q

Cubozoa are…….

A

Strong swimmers

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15
Q

Anthozoa includes

A

Sea anemones and corals

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16
Q

Cnidarians are……. symmetrical

A

Radially

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17
Q

The ……… and ……. are separated by mesogloea

A

Epidermis and gastrodermis

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18
Q

There is only mouth and no……

A

Anus

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19
Q

There are no special structures for…..

A

Excretion, respiration and transport

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20
Q

There is a simple nervous system consisting of nerve cells which form…..

A

Nerve net

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21
Q

There is a stinging adhesive structure called ……. found in the……

A

Cnidae, cnidocyte

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22
Q

The most common cnidae are…..

A

Nematocyst

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23
Q

Jelly fish possess

A

Sea water channels

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24
Q

Cnidarians exist in various forms known as …..

A

Polymorphism

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25
Q

Polyps are. …..

A

Sessile

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26
Q

What is a mesentery?

A

asupportorpartitionin aninvertebratelikethevertebratemesentery

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27
Q

………. are the gamete-producing cells in hydrozoa

A

Hydromedusae

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28
Q

The ……… in hydrozoa is accelular

A

Mesogloea

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29
Q

The cnidocytes in hydrozoa are only found in the. ….

A

Epidermis

30
Q

Gametes are……

A

Ectodermal

31
Q

What is manubrium

A

theprocessthatbearsthemouthof ahydrozoan

32
Q

Another name for manubrium is……

A

Hypostome

33
Q

Examples of hydrozoa are

A

Hydra, craspedote, hydromedusa

34
Q

Orders in the class hydrozoa include:

A

Hydroida, chrondrophora, siphonophora, actinulida, trachylina

35
Q

The most dominant form in scyphozoa is…..

A

Medusa

36
Q

Unlike hydromedusa, scyphozoa lack ……

A

Velum acrapspedote

37
Q

Cnidocytes of scyphozoa occur in…….

A

Gastrodermis and epidermis

38
Q

Gametes in scyphozoa are……

A

Gastrodermal

39
Q

Mesogloea in scyphozoa contain amoeboid……. cells

A

Mesenchyme

40
Q

Mesogloea in scyphozoa contain amoeboid……. cells

A

Mesenchyme

41
Q

An example of scyphozoa is

A

Jellyfish

42
Q

The medusa is fringed by short …….. and divided by ……..

A

Tentacles, notches

43
Q

The term enteron in hydrozoa means. …..

A

The digestive tract especially of embryo

44
Q

In cubozoa, the medulla is ………. with tentacles hanging down from each side

A

Square-shaped

45
Q

..,……. are strong swimmers and voracious predators of fish

A

Cubozoa

46
Q

Examples of anthozoa are

A

Sea anemone and coral

47
Q

In anthozoa, the ……… with limited movements dokinates

A

Polyp

48
Q

The gastrovascular cavity of anthozoa is divided into 3 by

A

Complete and incomplete mesentery

49
Q

The oral end is expanded into an oral discsurrojnded by

A

Tentacles

50
Q

Mesenteries in anthozoa bear

A

Cnidocytes and gonads

51
Q

The mouth of anthozoa leads into a…..

A

Pharynx

52
Q

The mesenchyme of ….. And…… contain amoeboid cells

A

Hydrozoa and anthozoa

53
Q

In anthozoa, sexual reproduction is by

A

Longitudinal fission

54
Q

The largest animals that move by means of cilia are

A

Comb jellies

55
Q

Phylum ctenophora include animals such as

A

Comb jelly, sea goose, sea berry, sea walnut

56
Q

There are 8 …… bands of cilia between the …… and…… parts in Comb jelly

A

Meridonal, oral and aboral

57
Q

The mesenchyme of ctenophora are made of ……. which form. …..

A

Gelatinous cells, musculature

58
Q

Comb jelly has……. symmetry, it is…….and…..

A

Biradial, transparent and fragile

59
Q

Comb jelly glows in the dark and has no body cavity, this means it is a

A

Luminescent acoelomate

60
Q

Comb jelly is…… with no …… Life stage

A

Monomorphic, no sessile life stage

61
Q

An example of comb jelly is

A

Mnemiopsis

62
Q

Ctenophorans are mostly…. with a…… Larva stage

A

Hermaphroditic, cydippid

63
Q

They have complete gut. This means

A

The gut leads into the pharynx and branched gastrovascular canals

64
Q

There are …. types of anus in ctenophorans

A

2, aboral pore and anal

65
Q

…….. releases sticky threaf to capture prey that comes in contact with the organism

A

Colloblast

66
Q

In ctenophora, there are no …… But the tentacles have adhesive glue cells called…..

A

Nematocyst, colloblast

67
Q

Both cnidarians and ctenophorans have…… symmetry, are……., have………as simple nervous system, have feeding ……….

A

Radial, acoelomate, nerve net, tentacles

68
Q

Ctenophorans are never ……..

A

Colonial

69
Q

Ctenophorans are…….. Throughout their life history

A

Monomorphic

70
Q

Ctenophorans do not have…….

A

Nemtocysts/ stinging cells

ZOO 116 (9 decks)

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