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Invert Bio Test 2 > Bivalves > Flashcards

Bivalves Flashcards

1
Q

Bivalve Respiration

A

Bipectinate gills
Large
Excurrent and incurrent siphons to direct water in and out

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2
Q

Bivalvia: labial palps

A

Initial sorters of food to either mouth or other exit

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3
Q

Bivalvia Circulation

A

Open system

Chambered heart

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4
Q

Bivalvia Taxonomy

A 
SubCl. Protobranchia
SubCl. Anomalodesmata 
Lamellabranchs
- SubCl. Pterimorphia 
- SubCl. Paleoheterodonta
- SubCl. Heterodonta
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5
Q

SubCl. Protobranchia

A 
Primitive gill: multiple sheets
Bipectinate gills
Collection of cilia
- frontal cilia: clean out
- lateral cilia: move water
- frontal-lateral cilia: feed
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6
Q

SubCl. Anomalodesmata

A

Lack hinge teeth
Marine to estuary
Intertidal to abyssal

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7
Q

SubCl. Anomalodesmata: septibranch gill

A

Reduced gill: flaps or valves

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8
Q

SubCl. Anomalodesmata: feeding

A

Feed like vacuum
Create suction with muscles
Feed on small animals

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9
Q

Lamellabranchs

A
  • SubCl. Pterimorphia
  • SubCl. Paleoheterodonta
  • SubCl. Heterodonta
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10
Q

Lamellabranchs: gill

A

Sheet-like, prominent, cilia-lined
Incurrent and excurrent chambers
Afferent and efferent blood vessels

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11
Q

Lamellabranchs: gill morphologies

A
  1. Filibranch gill- unfused

2. Eulamellabranch gill- fused; closed off for more restrictive flow in order to target water

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12
Q

Lamellabranchs: gill and food

A

Cilia capture food and send to food groove then labial palp to sort to mouth or exit

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13
Q

Lamellabranchs: digestion

A

Crystalline style
Style sac
Gastric shiel

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14
Q

Crystalline style

A

Solid rod of digestive enzymes that rotates and grinds food against shiel

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15
Q

Lamellabranchs: diverticula

A

Glands allow for slower digestion

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16
Q

Lamellabranch: attachment

A

Cement permanently using byssal

17
Q

SubCl. Pterimorphia

A

Mussels
Oysters
Scallops
Form eyes sometimes

18
Q

Osphradium

A

Detects water smells

19
Q

SubCl. Paleoheterodonta

A

Unio: freshwater clam
Glochidia larvae
Brooding reproduction: release sperm but not eggs

20
Q

SubCl. Paleoheterodonta: Glochidia Larvae

A

Have jaws to attach to something to move to new spot

21
Q

SubCl. Heterodonta

A

Quahog
Zebra mussels
Giant Clams

Invert Bio Test 2 (12 decks)

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