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Zoology Lab > Mollusca > Flashcards

Mollusca Flashcards

1
Q

Baseodicscus

A

-phylum: Nemertea
-marine
-100ft long
-ribbon worm
-attacks its prey with proscobscis that paralyzes prey with toxrdoxin
-complete digestive system
-two systems in nephridia (osmoregulation and excrete metabolic waste)

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2
Q

Neoplina

A

-phylum: Mollusca
-class: monoplacophora
-single plated shell
-deep sea
-creeping foot: crawl on the surface of the ocean floor
-eats scavenger

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3
Q

What is the synapomorphy of phylum Mollusca?

A

radula and the mantle that secretes the shell

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4
Q

What is the synapomorphy of class monoplacophora?

A

serial repetition

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5
Q

Mopalia

A

-phylum: molluca
-class: polyplacophora
-mossy chiton

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6
Q

What is the synapomorphy of polyplacophora?

A

-8 dorsal plates that roll up in a ball for protection
-subradular organ that tastes food for toxin before eating
-osipharia that senses water currents
-can find its way back home if washed away

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7
Q

Dentalium

A

-phylum: Mollusca
-class: Scaphopoda
-could be used for currency and jewelry

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8
Q

What is the synapomorphy of the Scaphopoda?

A

-mantle cavity that has canals lined with cilia that pulls water through from the ocean into the sand
-captacula that eats food through nutrients stuck in the sand

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9
Q

Conus

A
  • Phylum: Mollusca
  • Class: Gastropoda
  • Subclass: Prosobranchia
  • Common Name: Cone Snail
  • Toxin that they used to paralyze pray tetrotoxin ( have high concentrations than most ribbon worms)
  • have a tentacle with a radula tooth on it used to stab and slowly envelop its prey
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10
Q

Aplysia

A
  • phylum: mollusuca
  • class: gastropoda
  • subclass: opisthobranchia
  • Common Name: sea hare
  • don’t have shells
  • thick mantle that covers the body
    • can also use it to swim
  • releases a toxic red/pink ink
  • good model organism for memory/associative learning
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11
Q

Janolus

A
  • phylum: mollusuca
  • class: gastropoda
  • subclass: opisthobranchia
  • Common Name: Neutobronch
  • has two faces
    • auto-mimicry
      • the head and the back look similar
      • used to confuse the predator
  • cerata
    • defensive compound
    • toxic spikes
  • flat & leaf like
    • respiration
  • Kleptocnidae: steal cnidocysts from jelly fish
  • Kleptplasty: steals cholorplast from zooaxanthllae
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12
Q

Helix

A
  • phylum: mollusca
  • class: gastropoda
  • subclass: pulmonata ( only has two of these shells)
  • garden snail
  • famous pests
  • mate with love darts
  • edible
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13
Q

Ariolimax

A
  • phylum: mollusca
  • class: gastropoda
  • subclass: pulmonata
  • giant banana slug
    • almost a foot long
  • pest of strawberries
  • live in the pacific northwest
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14
Q

Mytilus

A
  • phylum: mollusca
  • class: bivalvia
  • blue mussles
  • important food sources for humans
  • connect to their substrate with byssal threads
  • filtering water for nutrients
  • form groups to prevent other species from coming in the area
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15
Q

Tridacna

A
  • phylum: mollusca
  • class: bivalvia
  • largest clam in the world
  • primarily a filter feeder
    • has zooaxthanllae under its mantle for photosynthesis
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16
Q

Thaumoctpus

A
  • phylum: mollusca
  • class cepholopoda
  • intelligent, very curious
  • mimic octopus
    • all different type of creatures
  • indonesia
17
Q

Hapalochlaenea

A
  • phylum: mollusca
  • class cepholopoda
  • common name: blue ringed octopus
  • 4 inches long
  • extremely dangerous
    • really toxic
      • salvialary glands have venom
        • totoxodin
    • will warn with intensity change in colors
18
Q

Vamproteuthis Infernalis

A
  • phylum: mollusca
  • class cepholopoda
  • vampire squid from hell
  • deep sea squid
  • not really a squid or octopus
  • 8 arms, 2 tentacles, and 2 sensory filaments
  • dangled their tentacles down to trap and eat fish
  • when they get scared they turn inside out so they become pointy
    • pineapple defens
19
Q

Nautilus

A
  • phylum: Mollusca
  • class: cephalopoda
  • swim backwards
  • siphuncle that regulates gas chambers for buoyancy
20
Q

Nautilus

A
  • phylum: Mollusca
  • class: cephalopoda
  • swim backwards
  • siphuncle that regulates gas chambers for buoyancy

Zoology Lab (9 decks)

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