Zoology Lab Practical #1 Flashcards

(17 cards)

1
Q

Phylum Porifera

A

Class Calcarea, Class Demospongiae, Class Hexactinellida

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2
Q

Class Calcarea

A
  • Phylum Porifera
  • spicule composition is Ca
  • asconoid, syconoid, and leuconoid body plans
  • lives in marine, shallow waters
  • 2nd most diverse group of sponges
  • worm-like
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3
Q

Class Demospongiae

A
  • Phylum Porifera
  • spicule composition is Si
  • leuconoid body plan
  • lives in freshwater and marine, streams, ponds, lakes
  • most diverse group of sponges
  • big, bath sponges
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4
Q

Class Hexactinellida

A
  • Phylum Porifera
  • spicule composition is Si, 6 points
  • syconoid, leuconoid body plans
  • lives in marine, deep ocean
  • least most diverse group of sponges
  • glass sponges
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5
Q

Phylum Cnidaria

A

Class Anthozoa, Class Hydrozoa, Class Scyphozoa, Class Cubozoa, Myxozoans

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6
Q

Cnidaria general characteristics

A
  • pedal disc/contracting bell is for locomotion
  • 2 germ layers
  • middle layer is mesoglea
  • cnidocytes collect food
  • larvae are Planula larva
  • 1 hole, two-way
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7
Q

Class Anthozoa

A
  • Phylum Cnidaria
  • no known medusa body plan
  • live in marine, shallow warm waters
  • mutualistic relationship with zooxanthellae
  • coral and sea anemone
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8
Q

Class Hydrozoa

A
  • Phylum Cnidaria
  • medusa and polyp body plans
  • live in marine and freshwater, deep ocean
  • Obelia and Portuguese-Man-of-War
  • hydra
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9
Q

Class Scyphozoa

A
  • Phylum Cnidaria
  • medusa and polyp body plans
  • marine, polar/tropical and deep/shallow waters
  • rhopalium (statocyst and ocelli)
  • jellyfish
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10
Q

Class Cubozoa

A
  • Phylum Cnidaria
  • cube shaped bell
  • marine, tropical shallow waters
  • active hunters and swimmers
  • velarium
  • dermonecrotic toxin
  • jellyfish
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11
Q

Myxozoans

A
  • Phylum Cnidaria
  • obligate endoparasites
  • marine and freshwater, need host
  • polar capsule
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12
Q

Phylum Ctenophora

A
  • ctenophores
  • 8 ctenes for locomotion
  • 3 germ layers
  • middle layer is collenchyme
  • use colloblasts to collect food
  • marine, warm waters
  • larvae are Cydippid larva
  • 2 holes, one-way
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13
Q

Phylum Platyhelminthes

A

Class Turbellaria, Class Cestoda, Class Trematoda

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14
Q

Phylum Platyhelminthes General Characteristics

A
  • acoelomate
  • organ level of organization
  • free-living forms
  • parasites (endo-)
  • host needed
  • moist habitats, terrestrial, aquatic
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15
Q

Class Turbellaria

A
  • Phylum Platyhelminthes
  • planarians
  • free-living
  • regenerative abilities
  • ocellus, auricle, pharynx
  • terrestrial and aquatic
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16
Q

Class Cestoda

A
  • Phylum Platyhelminthes
  • tape worms
  • endoparasites
  • suckers, hooks, scolex (‘head’ area), strobila (‘body’ area), proglottids (units of ‘body’), gravid eggs, uterus, testes
17
Q

Class Trematoda

A
  • Phylum Platyhelminthes
  • “flukes”
  • endoparasites
  • mouth, 2 suckers, yolk glands (dots on sides), uterus, testes, intestine, excretory pore