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zoology > Zoology Test #1: Phylum Cnidaria > Flashcards

Zoology Test #1: Phylum Cnidaria Flashcards

1
Q

Which class are cnidocytes only in the epidermis?

A

Hydrozoa

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2
Q

Which class does gametes only produce in the epidermis and always released to the outside of the body

A

Hydrozoa

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3
Q

Which class has a medusa with a velum?

A

Hydrozoa

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4
Q

Which class is mostly marine with some freshwater species

A

Hydrozoa

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5
Q

Which class has Hydras, Portuguese man-of-war, by-the-wind-sailor, Polyorchis, Gonionemus, and Obelia

A

Hydrozoa

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6
Q

What does Hydrozoa mean?

A

Water serpent animal

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7
Q

What does Scyphozoa mean?

A

Cup animal

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8
Q

What class has small solitary polyps (scyphistoma)

A

Scyphozoa and Cubozoa

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9
Q

What are small solitary polyps called?

A

scyphistoma

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10
Q

What class has gametes gastrodermal in origin and release into the gastrovascular cavity

A

Scyphozoa and Anthozoa

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11
Q

What class does the medusa lack a velum?

A

Scyphozoa

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12
Q

What class is all marine?

A

Scyphozoa

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13
Q

What class are all true jellyfish, moon jellyfish (Aurelia) in?

A

Scyphozoa

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14
Q

What does Anthozoa mean?

A

flower animal

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15
Q

What does Cubozoa mean?

A

cube animal

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16
Q

What class is medusa cuboidal in shape with tentacles that hang from each corner of the bell

A

Cubozoa

17
Q

What class has a mesoglea with amoeboid cells?

A

Scyphozoa and Anthozoa

18
Q

Which class includes box jellyfish, sea wasp (Chironez flickeri)

A

Cubozoa

19
Q

What class is colonial or solitary polyps

A

Anthozoa

20
Q

What class has no medusa

A

Anthozoa

21
Q

What class has a gastrovascular cavity divided by mesenteries

A

Anthozoa

22
Q

Which class includes anemones and corals?

A

Anthozoa

23
Q

What does Staurozoa mean?

A

cross-shaped animal

24
Q

which class is medusa absent?

A

Staurozoa

25
Q

Which class has attachment to substrate with adhesive disk?

A

Staurozoa

26
Q

Which class is sexual reproduction only; non conciliated crawling planula?

A

Staurozoa

27
Q

Which class includes stalked jellyfish?

A

Staurozoa

28
Q

Name the symbiotic relationship between coral and zooxanthellae

A

Mutualistic

29
Q

3 layers of Cnidarian

A

Epidermis (outer), Mesoglea (middle), Gastrodermis (innermost layer)

30
Q

Two types of asexual reproduction of sea anemones?

A
  1. Pedal laceration (pedal disk breaks away from polyp and grow into new pieces). 2. Longitudinal fission or transverse fission (sea anemones divide into two and missing parts are regenerated)
31
Q

Genus and species of box jellyfish?

A

Chironex fleckeri and Irukandji

32
Q

Function of cnidocil?

A

when stimulated, rapid influx (osmotic) of water causes nematocyst to evert and discharge.

33
Q

What is the asexual reproduction?

A

budding (in polyps)

34
Q

What is the sexual reproduction?

A

gametes in all medusa and some polyps, planula larva

35
Q

What is the skeleton?

A

Hydrostatic

zoology (64 decks)

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