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Biology 1020 > Tutorial: Ecdysozoa > Flashcards

Tutorial: Ecdysozoa Flashcards

1
Q

Nematoda tissue type

A

triploblastic

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2
Q

Nematoda symmetry

A

bilateral

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3
Q

body cavity in Nematoda

A

pseudoceolomate

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4
Q

development in Nematoda

A

protostome

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5
Q

segmentation in Nematoda

A

no

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6
Q

cephalization in Nematoda

A

yes

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7
Q

the digestive system in Nematoda

A

alimentary canal

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8
Q

excretory system Nematoda

A

diffusion through skin

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9
Q

the circulatory system in Nematoda

A

absent

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10
Q

respiration in Nematoda

A

diffusion

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11
Q

respiration in Nematoda

A

diffusion

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12
Q

reproduction in Nematoda

A

sexual

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13
Q

nervous system in Nematoda

A

small bundle of ganglia

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14
Q

other key traits of Nematoda

A

1.Movement with longitudinal
muscles only (no circular
muscles like annelids)

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15
Q

taxa in Nematoda

A
  1. parasitic
  2. free-living
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16
Q

Arthropoda tissue type

A

triploblastic

17
Q

Arthropoda symmetry

18
Q

body cavity in Arthropoda

A

coelomates but much reduced

19
Q

development in Arthropoda

A

protostome

20
Q

segmentation in Arthropoda

21
Q

cephalization in Arthropoda

22
Q

digestive tract Arthropoda

A

alimentary canal

23
Q

excretory system

A
  1. alimentary canal
  2. grasshoppers - Malpighian tubules
24
Q

the circulatory system in Arthropoda

A

open circulatory system
(grasshoppers have heart)

25
Q

respiration in Arthropoda

A

Aquatic: gills/feathery extensions,
cuticle exchange (smaller crustaceans)

Terrestrial: Tracheal tubes or book lungs
(arachnids)

26
Q

reproduction in Arthropoda

A

usually sexual

27
Q

nervous system in Arthropoda

A
  1. dorsal brain with ventral nerve cords and bundles (ganglia)
28
Q

other key traits of Arthropoda

A
  1. Jointed, paired appendages,
  2. Exoskeleton made of chitin.
  3. Body divided into three parts; head,
    thorax, abdomen
29
Q

taxa in Arthropoda

A

(1) Chelicerates (spiders, ticks, mites,
scorpions, horseshoe crabs)
(2) Myriapods (centipedes & millipedes)
(3) Pancrustaceans (lobsters, crustaceans,
insects & relatives)

30
Q

correct this list for Nematoda:
protostome, segmented, dioecious, circular muscles, ecdysis, open circulatory system

A
  1. segmented = should be unsegmented
  2. circular muscles - ONLY longitudinal muscles
  3. open circ system = circ system is ABSENT
31
Q

Arthropoda- blastopore forms anus, reduced coelom, open circulatory system, chitin endoskeleton

A
  1. blastophore forms mouth (protostome)
  2. chitin EXOskeleton
32
Q

do arthropods have a reduced coelom

33
Q

what do arthropods have EXCEPT:
1. protostome development
2. bilateral symmetry
3. pseudocelom
4. 3 germ layers
4. true tissue

A

pseudocoelom

34
Q

why are insects so successful

A

they have wings

35
Q

which is NOT a crustacean
1. coral
2. lobster
3. shrimp
4. barnacle
5. crab

Biology 1020 (29 decks)

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