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Biology 1020 > Tutorial: Lophotrochozoan > Flashcards

Tutorial: Lophotrochozoan Flashcards

1
Q

Platyleminthe tissue type

A

triploblastic

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2
Q

symmetry in Platyleminthe

A

bilateral

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3
Q

body cavity in Platyleminthe

A

acoelomates

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4
Q

development in Platyleminthe

A

protostome

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5
Q

is there segmentation in Platyleminthe

A

NO

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6
Q

is there cephalization in Platyleminthe

A

YES

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7
Q

describe the digestive tract inPlatyleminthe

A

gastrovascular cavity (one hole)

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8
Q

excretory system in Platyleminthe

A

flame cells (AKA protonephridia)

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9
Q

circulatory system in Platyleminthe

A

absent or diffusion

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10
Q

respiratory system in Platyleminthe

A

absent - diffusion

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11
Q

reproduction in Platyleminthe

A

hermaphroditic

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12
Q

the nervous system in Platyleminthe

A

small bundle of nerves (ganglia)

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13
Q

other key traits of Platyleminthe

A

dorsoventrally flattened

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14
Q

taxa in Platyleminthe

A

Catenulida
1. chain worms

Rhabditophora
1. Free-living = planarians
2. parasitic (trematodes and tapeworms)

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15
Q

tissue type of Rotifera

A

tripoblastic

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16
Q

symmetry in Rotifera

A

bilateral

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17
Q

body cavity in Rotifera

A

pseudocoelomate

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18
Q

development in Rotifera

A

protostome

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19
Q

segmentation in Rotifera

A

yes

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20
Q

cephalization in Rotifera

A

yes

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21
Q

digestive system in Rotifera

A

alimentary canal (2 holes)

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22
Q

excretory system in Rotifera

A

diffusion

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23
Q

circulatory system in Rotifera

24
Q

respiratory system in Rotifera

25
Q

reproduction in Rotifera

A

parthenogenesis

26
Q

the nervous system in Rotifera

A

small bundle of nerves (ganglia)

27
Q

other key traits of Rotifera

A
  1. jaws in the pharynx
  2. head with ciliated crown
28
Q

other taxa in Rotifera

29
Q

Mollusca tissue type

A

triploblastic

30
Q

symmetry in Mollusca

31
Q

body cavity in Mollusca

A

coelomates

32
Q

development in Mollusca

A

protostome

33
Q

segmentation in Mollusca

34
Q

cephalization in Mollusca

35
Q

digestive system in Mollusca

A

alimentary canal

36
Q

excretory system in Mollusca

A

nephridia and excurrent siphon

37
Q

the circulatory system in Mollusca

A

open in all except cephalopods

38
Q

respiration system in Mollusca

A

marine = gills in mantle cavity

terrestrial/freshwater = mantle cavity forms “lungs”

39
Q

reproduction in Mollusca

A

very diverse

40
Q

nervous system in Mollusca

A

nerve cord and ganglia
(brain well developed in cephalopods)

41
Q

other key traits of Mollusca

A
  1. three MAIN parts of the body
    (mantle, visceral mass, foot)
  2. many have a mantle cavity and radula
42
Q

taxa in Mollusca

A
  1. chitons/Polyplacophora
  2. bivalves
  3. gastropods
  4. cephalopods
43
Q

tissue type in Annelida

A

triploblastic

44
Q

symmetry in Annelida

45
Q

body cavity in Annelida

A

coelomates

46
Q

development in Annelida

A

protostome

47
Q

segmentation in Annelida

48
Q

cephalization in Annelida

49
Q

digestive system in Annelida

A

alimentary canal

50
Q

excretory system in Annelida

A

metanephridia

51
Q

circulatory system in Annelida

52
Q

respiratory system in Annelida

A
  1. absent in most (diffusion across skin)
  2. gills in marine species
53
Q

reproduction in Annelida

A

hermaphrodites OR fragmentation

54
Q

nervous system in Annelida

A

nerve cords and bund (cerebral ganglia)

55
Q

other key traits of Annelida

A
  1. hydrostatic skeleton
  2. movement with longitudinal and circular muscles
56
Q

taxa in Annelida

A
  1. Errantians
  2. Sedentarians (earthworms, leeches, tubeworms)

Biology 1020 (29 decks)

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